How Can I Find My Zip Code Extension?

Visit the USPS website and click on the link titled ‘Look Up a ZIP Code.’ Enter the mailing address in the appropriate boxes and click ‘Find.’ For example, enter 1600 Pennsylvania Ave NW, Washington, DC if you are looking up the ZIP Code+4 Extension for the White House.

How do I Find my 4 digit ZIP code extension?

HOW TO FIND MY UNIQUE 4 DIGIT ZIP CODE EXTENSION Open your internet browser of choice. Enter URL: https://tools.usps.com/go/ZipLookupAction!input.action Enter your street address, city, state and zip code Click Find

How do I get a ZIP code for my business?

We provide your business several ways to get ZIP Code information. Find the ZIP Code for an area of a city or town, or the location of a given ZIP Code. We make it simple. Enter an address and receive the ZIP+4 code. Here you will find ZIP Code frequently asked questions.

What are the last 4 digits of my zip code?

ZIP+4 Codes (ZIP Plus 4 Codes) are 4-digit codes added to 5-digit USPS ZIP Codes. The first five digits indicate the national area and destination post office / delivery area. The last 4 digits represent specific routes within delivery areas. 9-digit ZIP+4 Codes aid in routing and delivery efficiency.

What do zip code extensions mean?

Your ZIP+4 is a basic five-digit code with four digits added as an extra identifier. It helps to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail, or a post office box.

Are the last 4 digits of a zip code necessary?

The ZIP+4 code is used and assigned by the United States Postal Service (USPS) for routing purposes. The final 4 digits are not required for delivery of your mail and may change frequently.

Why does my zip code have numbers after it?

Each number of a zip code corresponds to a specific piece of information about the destination. The first number, between 0-9, denotes a geographic area of the U.S. The second two numbers of a zip code specify a specific region within that geographic area and the last two are meant to indicate a specific Post Office.

What is my zip code California?

Zip Code List Zip Code – 902 in California

Zip Code City County
90201 Cudahy Los Angeles County
90202 Bell Los Angeles County
90202 Bell Gardens Los Angeles County
90209 Beverly Hills Los Angeles County

What is a zip code in Canada?

Like British, Irish and Dutch postcodes, Canada’s postal codes are alphanumeric. They are in the format A1A 1A1, where A is a letter and 1 is a digit, with a space separating the third and fourth characters.

How do you read a zip code?

ZIP Codes are numbered with the first digit representing a certain group of U.S. states, the second and third digits together representing a region in that group (or perhaps a large city) and the fourth and fifth digits representing a group of delivery addresses within that region.

Can Google maps show ZIP codes?

This ZIP Codes on Google Maps tool will show all ZIP Code boundaries, in the U.S. anyway. To see ZIP Codes for a specific city, address, etc, just type the city or address in the ‘Search places’ box just above the map.

How many zip 4 codes are there in the US?

There are 41,683 ZIP Codes in the country.

What is a ZIP 4 code and how is it different from a 5 digit zip code?

What is a zip+4 code, and how is it different from a 5 digit zip code? A more detailed mailing code consisting of the original 5 zip code digit followed by a hyphen and four additional digits. These digits identify a specific geographic segment in delivery area.

What is US zip code?

A ZIP code is the term used to describe the postal code system in the United States. It is a series of numbers that communicates information about people within different geographic groupings.

What is the last 4 digits of SSN?

The nine-digit SSN is composed of three parts: The first set of three digits is called the Area Number. The second set of two digits is called the Group Number. The final set of four digits is the Serial Number.

Do ZIP codes increase from east to west?

Yes, since ZIP codes increase from east to west.

How to find my unique 4 digit ZIP code extension?

Visit the USPS website and click on the link titled ‘Look Up a ZIP Code.’ Enter the mailing address in the appropriate boxes and click ‘Find.’ For example, enter 1600 Pennsylvania Ave NW, Washington, DC if you are looking up the ZIP Code+4 Extension for the White House.

Is there a way to set your zip code?

While climate change and poor air quality are global issues concerning all people, 29-year-old Darren Riley has found that the ZIP code people are born into who also developed asthma himself, said he set out to find a way to alleviate systemic issues

What is your four digit ZIP code extension?

With post office boxes, the extra digits would identify the post office where that box is located. Zip code 30295 is located in Zebulon, Georgia. If you’re a resident of Zebulon, then your 4-digit extension will identify your business, home, or apartment within the 30295 zip code.

What are the 4 digits after my ZIP code?

– The 9-digit ZIP Code consists of two sections. – The first five digits indicate the destination post office or delivery area. – The last 4 digits represent specific delivery routes within delivery areas. – ZIP plus 4 codes assist the USPS in effectively sorting and distributing mail.

How to Find the 4 Digit Zip Code Extension for a Specific Address

  • A five-digit number was allocated to every postal address in the country when the United States Postal Service introduced the ZIP code system in 1963.
  • ZIP stands for Zoning Improvement Plan Code.
  • The technology made it possible for postal workers to sift the rising volume of mail more quickly.
  • It was established in 1981 to further reduce the geographic region covered by postal delivery by adding the ZIP+4 code addition to the address.
  • The United States Postal Service website or any USPS office may provide you with the four-digit ZIP Code extension for a certain address.

Online

  • Visit the United States Postal Service website and select the option labelled ″Look Up a ZIP Code.″ Simply type in the postal address in the relevant areas and hit the ″Find″ button.
  • In order to find the ZIP Code+4 Extension for the White House, you may type 1600 Pennsylvania Ave NW, Washington, DC into your search engine’s address bar.
  • This extension has a total of nine digits and is represented as 20500-0003 in the search results.

Why the Extension Matters

  • Orlando or Tampa are identified by the first five digits of the standard ZIP Code, which is followed by the city’s name and the city’s ZIP Code.
  • In addition, the last four additional digits further limited the delivery region by designating two digits to represent the neighborhood and two digits to designate the street block or building.
  • Although the post office does not compel senders to enter the entire nine-digit ZIP Code, doing so can lessen the number of times your letter is handled and the likelihood of a delivery problem.

What is my Zip Code – Zip Code Finder

  • We have determined the zip code in which you are most likely located based on your general location.
  • Please share your location with us so that we may obtain your precise zipcode.
  • You can also look up the zipcode of any location or point on the map that you click on.
  • If you search for a city, you may not get any results because there are several zip codes inside a single city.
  • The zip code for that location may be found by clicking within the city borders if this is the case.
  1. Depending on where you are located, you may receive the postal code of the nation in which you are located rather than the United States.
  2. Based on your internet connection, we were able to determine your zip code or postal code.
  3. Please provide me with your precise zip or postal code so that I can locate you.
  • You may share this map by clicking on the following link:

What is a zip code/postal code?

  • To facilitate the sorting of mail in the United States of America, zipcodes are five or nine-digit digits that are appended to a postal address to aid in the sorting of mail.
  • There are around 43,000 zipcodes in use today.
  • This tool may also be used to locate the postal code of a variety of other nations.
  • Postal codes differ from one nation to the next, but they are often a collection of numbers ranging from three to ten digits in length.
  • In certain countries, such as the United Kingdom and Canada, postal codes are made up of a combination of numbers and letters, known as postal codes.

What else can you do with the zip code finder?

  • Determine your ZIP code by answering the question ″What zip code am I in?″
  • You may use this tool to get the zip or postal code of any address in the globe.
  • Click on a point to locate the zip or postal code that is the most convenient for you
  • In addition, the program will discover other bits of the address that you might utilize if necessary

ZIP+4™ Codes Lookup by Address

  • ZIP+4 Numbers (ZIP Plus 4 Codes) are four-digit codes that are appended to five-digit United States Postal Service ZIP Codes.
  • The first five digits of the postal code identify the country and the post office / delivery region where the package is to be delivered.
  • Individual routes within delivery zones are represented by the final four digits.
  • The use of 9-digit ZIP+4 Codes improves the efficiency of routing and delivery.

9-digit Full ZIP Code Lookup by Address

We make it simple to complete a full ZIP+4 Code lookup by address using the United States Postal Service. To find your ZIP+4 Code, select one of the options listed below.

Enter an address to lookup the specific ZIP+4 Code. Lookup several ZIP+4 Codes at once with the Bulk Tool. Lookup ZIP+4 Codes programmatically using our APIs.
ZIP+4 Lookup Bulk ZIP+4 Lookup ZIP+4 API Lookup
  • The following topics will be covered in this article: How do I find my ZIP+4 code by address?
  • How do I get my ZIP+4 code by phone number?
  • How to Make Use of ZIP+4 Codes
  • Is It Necessary to Have a Five-Digit ZIP Code?
  • Meaning of ZIP Code plus four digits
  • ZIP+4 Code Advantages in Detail
  • ZIP+4 Code Database
  • and Conclusion

How to Find My ZIP+4 Code by Address

If you watch this video, you will learn how to quickly and simply figure out your own ZIP+4 last four numbers. It will take you less than one minute.

How Full ZIP Codes Are Used

  • Knowing what the last four digits of a ZIP Code are all about necessitates a thorough understanding of what ZIP Codes are in general terms.
  • The Zone Improvement Plan was developed by the United States Postal Service in order to make it simpler to send mail and parcels around the country.
  • Due to the way mail was dispersed, it helped split the country into distinct ″zones,″ which aided in speeding up the sorting and delivery process.
  • During the same time period that the Postal Service Department announced the Zone Improvement Plan on July 1, 1963, they also presented the world to Mr.
  • ZIP ″Zippy,″ a fictional character created by the Postal Service.
  1. Zippy is the official ZIP Code mascot, and he can be found on our ZIP Codes 101 website as well.
  2. They also produced the ZIP Code jingle, which goes as follows: The audio element cannot be played because your browser does not support it.
  3. Since 1963, as the population of the United States has grown and dispersed, it has become necessary to extend the system in order to accommodate everyone and their canine companion.
  • That’s where the ″plus 4″ portion of the equation comes in.
  • However, we’re getting ahead of ourselves, so let’s start with the fundamentals.

USPS Five-Digit ZIP Codes

  • These are the codes with which you are already familiar.
  • They have the following appearance……and are most usually used to denote a destination post office.
  • The reason behind this is as follows: If you’re shipping a letter from Boston to Seattle, the Massachusetts postal carrier isn’t really concerned with the street address of the recipient’s residence.
  • What you may label ″beyond his jurisdiction″ is the situation.
  • He only has to know which postal carrier to use in order for the other carrier to deliver the package to the correct address.
  1. On any given day, a postal worker can only cover a certain amount of ground.
  2. And because the United States Postal Service has a policy of delivering in all weather conditions, including rain, sleet, and snow, there is no way to provide the service of delivering in stages (some today, some tomorrow).
  3. In other words, each one post office can only service the area that it can reach in a single day.
  • That is reflected in the ZIP Codes.
  • The majority of the time, a ZIP Code is associated with a post office; that is, every one of the latter has a corresponding one of the former.
  • ZIP Codes may be thought of as a sort of postal address for a certain post office location.
  • Some agents cover more than one ZIP code, but the majority of them operate on a one-on-one basis.
  • Note that ZIP Codes are not ″boundaries,″ which is extremely essential to understand.

They’re a collection of delivery routes that have been compiled.They do not adhere to physical or administrative boundaries, and they are capable of crossing city, county, and even state boundaries.They travel in the same direction as the delivery vehicles.Some ZIP Codes are considered to be outliers.

One type of ZIP Code is designated as ″military,″ and it includes anything from military sites (local and international) to battleships at sea.Then there are ZIP Codes that are ″unique.″ Because of the large volume of mail that businesses and organizations send and receive, they may be assigned their own ZIP Codes.These organizations regularly take advantage of bulk mailing reductions because they typically have a mail department that (1) presorts mail before delivering it to the USPS and (2) distributes mail internally so that the USPS is not required to do so.″Military″ and ″unique″ ZIP Codes are similar to ordinary ZIP Codes in that they circumscribe their own delivery region.Visit our ZIP Codes page for a more in-depth look at the system.

ZIP Code + 4 Meaning

  • ZIP+4 Numbers are four-digit codes that are attached to the end of the original five-digit United States Postal Service ZIP Codes.
  • When mailing with the United States Postal Service, using complete ZIP Codes ensures the fastest and most accurate delivery possible.
  • Once an address has been authenticated and shown to be legitimate, they are only made available for that address to be used.
  • Each of these numbers corresponds to a distinct delivery route, which refers to the actual path that a postal truck would take in completing a single drop-off.
  • Typically, this consists of 10 to twenty different residences or sites.
  1. PO Boxes are also allocated ZIP+4 codes in addition to their regular ZIP codes.
  2. Typically, each PO Box is assigned a unique +4 Code, which is frequently the same as the box number.
  3. Because ZIP codes plus four additional digits are based on delivery routes rather than more permanent borders, the last four digits of a full ZIP Code can vary on a regular basis.
  • ZIP codes plus four additional digits are based on delivery routes rather than more permanent boundaries.
  • It is also possible that five-digit ZIP Codes will change, but this will happen seldom; it is far less probable that you will be residing in a ZIP Code when it changes.
  • This is not the case for the complete 9-digit ZIP Code.
  • The +4 on a ZIP Code can be altered as frequently as once a month, depending on factors like as the number of postal employees on the job, who is assigned to which route, and other factors.

Benefits of Full ZIP+4 Codes

  • Numerous factors contribute to the good fortune associated with complete ZIP+4 Codes in terms of shipment.
  • For starters, ZIP+4 Codes are subject to validation, which means that if an address has a ZIP+4 code connected to it, you can be certain that it is legitimate.
  • Another advantage is that they may assist you in obtaining bulk mailing savings.
  • Another significant advantage of using the final four digits of ZIP Codes is the speed with which packages are delivered.
  • Complete ZIP+4 use on your mail can save processing and delivery times by as much as two days, depending on the volume of mail being sent.
  1. If you mark your items correctly, your mail will arrive more quickly, which is great news!
  2. I bet you’re scurrying around for those codes right now, don’t you?
  3. Get those additional four digits.

ZIP+4 Code Database

  • Using a CASS Certified USPS address validation vendor, such as Smarty, is often the most convenient approach for many users to gain access to the USPS ZIP+4 database.
  • Because ZIP+4 codes are updated on a regular basis, data that is even a month old may be erroneous.
  • Checking addresses against the database on a regular basis can help to guarantee that your data is as clean as it can be.
  • It is also possible to gain access to the ZIP+4 Code database for free directly through the United States Postal Service’s website or through the USPS address validation API.
  • If you elect to use the United States Postal Service’s database directly for obtaining ZIP+4 codes and validating addresses, proceed with caution.
  1. The United States Postal Service (USPS) has tight regulations for utilizing their address information, as well as performance constraints that might make your job more difficult.
  2. Prior to using their APIs, make sure you read the terms of service for the company.
  3. Our page on USPS APIs has a thorough list of restrictions and limitations.

Conclusion | What is My 9 Digit ZIP Code?

There will be three questions in the quiz:

  1. ZIP+4 codes are used to identify delivery routes.
  2. Using ZIP+4 Codes expedites and improves the accuracy of your mail delivery.
  3. Smarty (previously SmartyStreets) can provide you with such codes
  4. just let us know what you need.
  • If you only want to test it on one address, you may do it right now by using our single address verification tool.
  • We process addresses using our lightning-fast USPS address verification API, which returns the right ZIP+4 Code for each address that we process.
  • Please go ahead and verify the postal address you’ve been given.
  • Alternatively, if you’d rather to speak with a live person, you may phone us at the number above.
  • A fictitious person would be offered instead, but we do not have one of those on staff.) With either case, we can assist you in ZIP-ing your address and ZIP-ing it well.

Home

The data on this website contains more than 45,000,000 ZIP Code 5 Plus 4 in the United States, as well as information on the ZIP Code 5 Plus 4, the range, the record type, the carrier route ID, the street address, the city name, the county FIPS, the state abbreviation, and more. There is also an online map available.

State List

45 million 9-digital numbers ZIP codes 5 and 4 are subdivided into subdomain webpages for each of the 50 states and one district, where you may get further information such as zip code 5, zip code 5+4, city and county information, and so on. The following is a list of the states of the United States. Select a state from the drop-down menu to see detailed ZIP code information.

City Name

Please look for ZIP Codes by city name using the following formula:

County FIPS

Please review the following ZIP Codes by County FIPS:

ZIP Code 5

Please check the following ZIP Codes by ZIP Code 5:

Envelope Example

  • This is an example of a United States postal envelope.
  • The sender’s information should be entered at the top left, and the recipient’s information should be entered at the bottom right.
  • Sender’s and recipient’s full names, street addresses, city and state, and zip code are all required pieces of information.
  • The information on the recipient’s address has been provided for your convenience.
  • In most cases, if you are unsure of the entire 9-digit zip code, you should just put in the 5-digit zip code to prevent losing your product in transit.

Please see the following government paper for further explanation: USA.pdf (English)

Population

  • With a decrease of –6,082 people between 2010 and 2019, the population of the state of American Samoa increased from 55,519 in 2010.
  • American Samoa is now the 56th most populous state in the United States, with a population of 0.02 percent of the overall population of the United States of America.
  • The population of the state of Guam was 159,358 in 2010 and has increased to 159,358 in 2019, representing a growth of +9,127 from 2010.
  • Guam is now the 53rd most populous state in the United States, and it has a population of 0.05 percent of the overall population of the United States.
  • The population of the state of Northern Mariana Islands was 53,883 in 2010 and 53,883 in 2019, representing a decrease of –2,450 from the previous year.
  1. As of today, the Northern Mariana Islands is the 55th most populous state in the United States, with a population that amounts for 0.02 percent of the entire population of the country.
  2. The population of the state of Puerto Rico was 3,725,789 in 2010 and increased to 3,725,789 in 2019, representing a decrease of –532,095 from the previous year.
  3. In terms of population size, Puerto Rico is the 31st most populous state in the United States, accounting for 0.96 percent of the overall population of the country.
  • According to the United States Census Bureau, the population of the Virgin Islands was 106,405 in 2010 and 106,405 in 2019, representing a decrease of –170 from 2010.
  • As of today, the Virgin Islands are the 54th most populous state in the United States, with a population that accounts for 0.03 percent of the entire population of the United States.
Area 2019 Census Data 2010 Census Data Increase Increase(%) Rank Proportion of total population(%)
American Samoa 49,437 55,519 –6,082 –10.95% 56th 0.02%
Guam 168,485 159,358 +9,127 5.73% 53th 0.05%
Northern Mariana Islands 51,433 53,883 –2,450 –4.55% 55th 0.02%
Puerto Rico 3,193,694 3,725,789 –532,095 –14.3% 31th 0.96%
Virgin Islands 106,235 106,405 –170 –0.16% 54th 0.03%

What is My ZIP+4®?

  • Your ZIP+4 code is a standard five-digit code with an additional four digits added as an identification for your location. In the five-digit delivery area, it is used to designate a geographic segment within the region, such as a city block, a group of apartments, a single high-volume mail recipient, or a post office box. In addition to improving the mail sorting and delivery process, ZIP+4 Codes also qualify mailers for bulk mailing savings due to the enhanced degree of accuracy. This helps to speed up delivery time, reduce the likelihood of delivery mistakes, and qualify mailers for bulk mailing discounts. If you enter a zip code, Melissa’s ZIP+4 lookup will provide a list of addresses inside that ZIP Code. It also provides information on addresses, such as the current resident, phone number, and other pertinent information. For this tool, simply enter a 5-digit ZIP Code and you will be presented with a list of all ZIP+4 Codes that fall inside the specified 5-digit ZIP Code.
  • Enter a ZIP+4 Code to see a list of all addresses inside that ZIP Code as well as additional consumer information.

Why Melissa?

  • Melissa has more than 35 years of expertise in offering cutting-edge address management and mailing solutions to businesses and organizations.
  • Using our Address Verification service CASS, we will process your mailing list by comparing the addresses in your mail file to the monthly updated USPS® National Address file, adding the necessary ZIP+4 postal codes, and standardizing your mailing list to meet USPS CASS standards.
  • More than 240 nations have their address data verified, corrected, and standardized by us, and our CASS processing service can assist you in improving mail deliverability and qualifying your mailings for postal savings.

What is a Zip+4 Code and Why May It Change?

  • ZIP+4 codes are utilized and allocated by the United States Postal Service (USPS) to help with routing and delivery of mail.
  • The last four digits of your postal code are not necessary for delivery of your mail and may change on a regular basis.
  • As a consequence of the Marathon County Uniform Addressing Program, there have been a number of +4 digit adjustments.
  • When a new street or a new block range of addresses is added to the United States Postal Service data system, a new +4 number may be assigned.
  • Marathon County does not assign this number; rather, it is assigned by the United States Postal Service.
  1. As an illustration: Mosinee, WI 54455-1234 -> 54455-6789 Mosinee, WI 54455-1234 -> 54455-6789 It is possible for a ZIP+4 code to refer to a geographic segment within the five-digit delivery area that is defined by the basic five-digit code plus four additional digits.
  2. Examples of such segments include city blocks, groups of apartments, individuals who receive large amounts of mail or a post office box, or a specific delivery route — in which case the actual path that the mail truck would take may have changed.
  3. Given that ZIP codes are based on delivery routes rather than more permanent borders, the last four digits of a whole ZIP code can change on a regular basis.
  • Five-digit ZIP codes are also subject to change, although only on a rare occasion.
  • In the case of ZIP+4, this is not the case.
  • The +4 on a ZIP code can be altered as frequently as once a month, depending on factors like as the number of postal employees on the job, who is assigned to which route, and so on.
  • A ZIP code is a postal code that was first used by the United States Postal Service (USPS) in 1963 as part of a system that was implemented nationwide.
  • In 1983, the United States Postal Service established an expanded ZIP+4 code, which consists of the five digits of the ZIP code followed by a hyphen and four extra numbers that relate to a more particular location.

Initial efforts to promote general use of the new format, however, were greeted with widespread opposition, and the +4 code is no longer necessary.Mail is typically read by a multiline optical character reader (MLOCR), which almost instantly determines the correct ZIP+4 code from the address — as well as the even more specific delivery point — and sprays an Intelligent Mail barcode (IM) on the face of the mail piece that corresponds to 11 digits — nine for the ZIP+4 code and two for the delivery point — on the face of the mail piece.

What’s the Deal with the 4 Extra Zip Code Numbers?

  • In this day and age of emails, DMs, and video conversations, it’s possible that you aren’t very familiar with conventional mail, and you may not even know how to correctly fill down your address on a postcard.
  • One of the most common mistakes people make when writing down an address has to do with the zip code — specifically, the four additional zip code numbers that are frequently present at the end of the address.
  • The possibility exists that you have seen them while getting an automatic-addressed item, or that you have seen this zip code as an option when purchasing anything online.
  • In other words, what precisely is the issue with all of those additional zip code designations?
  • We’ve got the answers you’re looking for.

What the traditional zip code means

  • When someone inquires about your zip code, you are likely to respond with a string of five numbers in response.
  • This is the standard practice for the vast majority of individuals, and it has been the standard practice for the United States Postal Service (USPS) from its inception.
  • When zip codes were initially established in 1963, they were part of a larger effort to improve the efficiency of mail delivery in the United States by dividing the country into zones based on mail routes.
  • The majority of the time, your five-digit zip code identifies the location of the post office where your mail is delivered before being delivered to you by your postal carrier.
  • Specifically, each digit in a zip code refers to a specific piece of information about the location being searched for.
  1. The first number, which ranges from 0 to 9, designates a geographic region of the United States.
  2. The second and third numbers of a zip code designate a specific region within a geographic area, while the final two numbers are intended to designate a specific Post Office within that region.
  3. Some post offices serve more than one zip code, but for the most part, there is a one-to-one correspondence between post offices and zip codes in the United States.
  • This is why the United States Postal Service frequently requires you to transact business with them at a certain location.
  • Fun fact: Zip codes are assigned based on geographic location; codes begin at 0 in the east and progress towards 9 on the west coast as you go across the United States from east to west.

What the extra four numbers mean

  • Those extra four digits in your zip code were added more than two decades after the first zip code was established.
  • Due to the expansion of the United States’ infrastructure, the five-digit zip code system had to be updated with something more exact.
  • In 1983, a technique was developed to allow for more exact location of structures.
  • Now, you may identify certain streets, buildings, residences, or companies by using a regular zip code in conjunction with the four additional zip code digits available.

How important are the four extra zip code numbers?

  • For the majority of applications, the regular five-digit zip code will sufficient, and the full nine-digit zip code will not be required.
  • There are several exceptions to this rule, though.
  • There are several firms that are qualified to obtain a discounted bulk mailing rate.
  • This mail is handled in a different manner than ordinary delivery mail, and it frequently takes a little longer to reach its destination.
  • However, for many companies, the reduction is well worth it.
  1. For mail delivered at a discounted bulk rate, the United States Postal Service requires a complete nine-digit zip code.
  2. An additional instance in which you may want your whole nine-digit zip code is when looking for your congressional representatives based on your address.
  3. In certain districts, knowing your whole zip code is the only method to identify the individual government officials that represent you.
  • However, knowing your whole zip code will increase the likelihood of your mail being delivered correctly more frequently.
  • The majority of mail will arrive at its destination without a hitch if you only enter your usual five-digit zip code, but if you’re concerned about a box not arriving, defining the intended location even further will not affect your chances of receiving your product.

Comments

  • For the majority of applications, the regular five-digit zip code will sufficient, and the full nine-digit zip code will not be required.
  • There are several exceptions to this rule, though.
  • There are several firms that are qualified to obtain a discounted bulk mailing rate.
  • This mail is handled in a different manner than ordinary delivery mail, and it frequently takes a little longer to reach its destination.
  • However, for many companies, the reduction is well worth it.
  1. For mail delivered at a discounted bulk rate, the United States Postal Service requires a complete nine-digit zip code.
  2. An additional instance in which you may want your whole nine-digit zip code is when looking for your congressional representatives based on your address.
  3. In certain districts, knowing your whole zip code is the only method to identify the individual government officials that represent you.
  • However, knowing your whole zip code will increase the likelihood of your mail being delivered correctly more frequently.
  • The majority of mail will arrive at its destination without a hitch if you only enter your usual five-digit zip code, but if you’re concerned about a box not arriving, defining the intended location even further will not affect your chances of receiving your product.

CI Gateway Zip Code List

Zip Code City County
90201 Bell Los Angeles County
90201 Bell Gardens Los Angeles County
90201 Cudahy Los Angeles County
90202 Bell Los Angeles County
90202 Bell Gardens Los Angeles County
90209 Beverly Hills Los Angeles County
90210 Beverly Hills Los Angeles County
90211 Beverly Hills Los Angeles County
90212 Beverly Hills Los Angeles County
90213 Beverly Hills Los Angeles County
90220 Rancho Dominguez Los Angeles County
90220 Compton Los Angeles County
90221 East Rancho Dominguez Los Angeles County
90221 Compton Los Angeles County
90222 Rosewood Los Angeles County
90222 Compton Los Angeles County
90223 Compton Los Angeles County
90224 Rancho Dominguez Los Angeles County
90224 Compton Los Angeles County
90230 Culver City Los Angeles County
90231 Culver City Los Angeles County
90232 Culver City Los Angeles County
90233 Culver City Los Angeles County
90239 Downey Los Angeles County
90240 Downey Los Angeles County
90241 Downey Los Angeles County
90242 Downey Los Angeles County
90245 El Segundo Los Angeles County
90247 Gardena Los Angeles County
90248 Gardena Los Angeles County
90249 Gardena Los Angeles County
90250 Holly Park Los Angeles County
90250 Hawthorne Los Angeles County
90251 Hawthorne Los Angeles County
90254 Hermosa Beach Los Angeles County
90255 Walnut Park Los Angeles County
90255 Huntington Park Los Angeles County
90260 Lawndale Los Angeles County
90261 Lawndale Los Angeles County
90262 Lynwood Los Angeles County
90263 Malibu Los Angeles County
90264 Malibu Los Angeles County
90265 Malibu Los Angeles County
90266 Manhattan Beach Los Angeles County
90267 Manhattan Beach Los Angeles County
90270 Bell Los Angeles County
90270 Maywood Los Angeles County
90272 Pacific Palisades Los Angeles County
90274 Palos Verdes Peninsula Los Angeles County
90274 Palos Verdes Estates Los Angeles County
90274 Rolling Hills Los Angeles County
90274 Rolling Hills Estates Los Angeles County
Zip Code City County
90275 Palos Verdes Peninsula Los Angeles County
90275 Palos Verdes Estates Los Angeles County
90275 Rancho Palos Verdes Los Angeles County
90275 Rolling Hills Estates Los Angeles County
90277 Redondo Beach Los Angeles County
90278 Redondo Beach Los Angeles County
90280 South Gate Los Angeles County
90290 Topanga Los Angeles County
90291 Playa Del Rey Los Angeles County
90291 Venice Los Angeles County
90292 Marina Del Rey Los Angeles County
90292 Venice Los Angeles County
90293 Playa Del Rey Los Angeles County
90293 Venice Los Angeles County
90294 Venice Los Angeles County
90295 Marina Del Rey Los Angeles County
90295 Venice Los Angeles County
90296 Playa Del Rey Los Angeles County
90296 Venice Los Angeles County

41,692 ZIP Codes – U.S. Postal Facts

  • There are a total of 41,683 ZIP Codes in the United States.
  • The ZIP Codes run from 00501 in Holtsville, New York, which belongs to the Internal Revenue Service, to 99950 in Ketchikan, Alaska.
  • Which one is the simplest to recall?
  • 12345 is an unusual ZIP Code for General Electric, which is located in Schenectady, New York.
  • Quick!
  1. What is the ZIP Code for this location?
  2. The United States Postal Service (USPS) created the ZIP Code in 1963.
  3. The first number reflects a basic geographic region of the country, with ″0″ representing the eastern hemisphere and ″9″ representing the western hemisphere.
  • After that, the following two digits designate regional districts, while the next two numbers designate particular Post Offices or postal zones in big metropolitan areas.
  • By using an international postal code (ZIP+4), which was first used in 1983, mail may be sorted to particular addresses such as specific streets, buildings, residences, and companies.
  • ZIP Codes are now critical components of the United States’ 911 emergency response system.
  • ZIP is an abbreviation for Zone or Zoning Improvement Plan.
  • Trademarks Trademarks The United States Postal Service has a large number of trademarks, including the Eagle Logo, the trade dress of USPS packaging, the Letter Carrier Uniform, the Postal Truck, and the following marks: Forever®, Global Express Guaranteed®, IMb®, Informed Delivery®, Intelligent Mail®, Label BrokerTM, Parcel Select®, Post Office®, Pony Express®, Postal Inspection ServiceTM, PostalOne!®, PostalPolice®, PostalProud®, Priority Mail Express International®, Priority Mail Flat Rate®, Priority Mail International Service®, Priority Mail Intenational Service®, Priority Mail International Service®, Priority Mail International Service, Priority This is not an exhaustive list of all trademarks owned by the United States Postal Service.

Dollar General®, Forest Stewardship Council®, McDonald’s®, National Dog Bite Prevention Week®, Starbucks®, Subway®, Sustainable Forestry Initiative®, The Climate Registry® are examples of non-postal trademarks.Postal Facts 2022 is a website that gives information on the United States Postal Service to the general public.Unless otherwise stated, the facts included in this publication may be reproduced solely for the purpose of expressing the fact in its entirety, as well as in a business, informational, or academic context, and in the body of text discussing factual subject matter related to the fact being presented.However, these data may become out of date after they have been published, thus it is recommended that you acquire the most recent information.

Produced by Corporate Communications for the United States Postal Service The United States Postal Service is scheduled to shut in 2022.All intellectual property rights are retained.The United States Postal Service will operate from 2016 through 2022.All intellectual property rights are retained.

ZIP Code Overview

The Importance Of ZIP Codes

  • In the United States, ZIP code information is essential for conducting commercial activities.
  • Whether you’re delivering mail, handling fraud detection, or studying demographic information, this is a vital parameter to know.
  • The purpose of this article is to assist you in better understanding the background behind this combination of statistics in greater depth and detail, so that you may use this data point to your advantage in your company’s operations.

The American ZIP Code System (USPS)

  • The ZIP code’s primary function is to expedite and streamline the processing of information.
  • Processing delays may occur as a consequence of typographical errors in ZIP codes.
  • The United States Postal Service is the ultimate source for gaining an in-depth grasp of the ZIP code encoding system.
  • Hopefully, this extensive FAQ resource will be of use.
  • What you’ll see is that every digit contained within a ZIP code has significance when considered as part of a systematic strategy.

ZIP & ZIP+4

  • ZIP codes in the United States are composed of five number digits.
  • In addition to being known as ZIP+4 codes, they are sometimes referred to as add-on or plus-four codes since they feature four additional digits that define a geographic section inside a ZIP code delivery region.
  • The first number of a ZIP code denotes a specific set of states in the United States.
  • Each of the group’s second and third numbers represents a territory, such as a significant city, inside that group.
  • It is just necessary to know the first five digits of the ZIP code in order to send mail.
  1. Including the complete ZIP+4 code, on the other hand, can shorten delivery times owing to the particular geographic information being conveyed.
  2. ZIP codes are converted into barcodes, which allow for the automatic sorting of mail, hence reducing the amount of human monitoring that is required in the process.

History Of The ZIP Code

  • The ZIP code system was established during a period of economic boom in the United States of America.
  • Due to a quick increase in population as well as a burgeoning in commercial activity following the first and second World Wars, it developed out of necessity.
  • During this time period, existing postal delivery methods began to fail as a result of the requirement for information to move across the whole United States continent more quickly than previously.
  • A new system was developed in response to this, and it was officially deployed in 1963 following a 20-year development process by Robert Moon, who spent his entire career working for the United States Postal Service (USPS).
  • A specified numerical system was used instead of a less organized recall of well-known cities, counties, and states in order to operate this system.
  1. This transition from a more informal and personal method of managing mail to one that was more defined and ordered sparked criticism and a 20-year battle.
  2. At the time of Moon’s death in 2001, he was credited with the development of the first three digits of the United States ZIP code.
  3. By 1967, ZIP codes were used to identify all mail delivered in the United States.
  • This period in history saw the United States Postal Service responsible for transporting 80 billion pieces of mail, an increase from the previous peak of 30 billion during World War II.
  • Meanwhile, a new world of transportation was emerging, characterized by the use of trucks and airplanes, which were capable of transporting commodities more effectively than traditional train systems.
  • As time went on, ZIP codes grew to serve a greater number of functions in American culture and society.
  • When it comes to the United States Census, for example, ZIP codes are used to categorize demographic information, which includes but is not limited to educational attainment, family income, household size, and other population health indicators, among other things.
  • ZIP codes are used by financial institutions such as banks, insurance providers, and credit card firms to determine interest rates.

Zip codes are also employed in online purchasing applications, particularly in the areas of fraud detection and prevention, as previously mentioned.ZIP codes are essential for knowing the demographic features of the United States as well as conducting business inside the country.

ZIP Codes In Global Perspective

It is a member country of the Universal Postal Union that the United States belongs to (UPU). In order to promote the free interchange of worldwide mail, the United Nations Postal Union (UPU) relies on postal code standards created and maintained by the United States of America.

The United Nations Regulatory Body

  • The United Nations’ regulatory authority, the United Nations Population Fund (UPU), is reliant on member countries like the United States for funds, insights, and scientific leadership.
  • Using Geographic Information Systems (GIS) technology from the United States, the Universal Postal Union has been able to construct new postal systems in developing countries from the ground up in recent years.
  • A second function of the UPU is to act as a mediator in conflicts arising in a complicated global trade environment.
  • The United States, with its ZIP code system and expertise, is one of the most generous donors to the United Nations Population Fund (UPU).
  • Therefore, it is critical for technologists who deal with ZIP code data to realize that postal code systems have far-reaching geopolitical relevance as problem-solving tools, and that this understanding should be communicated to them.

Postal Codes In Canada (Canada Post)

  • There are two different systems of postal codes in use in Canada and the United States.
  • For starters, ZIP codes are unique to the United States and are maintained by the United States Postal Service (USPS).
  • When it comes to postal codes in Canada, they are administered by Canada Post, which is the country’s mail delivery agency.
  • Canada, like the United States, has one of the most well-defined postal code systems in the world, which is similar to the United States.
  • During the 1950s and 1960s, the country had a population boom, which coincided with the development of this system.
  1. This was the initial postal code, which was a three-digit system that was later expanded to a six-digit system starting in 1969.
  2. It is known as a forward sortation area (FSA) in the first three digits of the number, and it corresponds to a geographical location such as a province or territory.
  3. The second set of three digits relates to a local delivery unit (LDU), which is a collection of addresses that is described by the first set of three digits.
  • Postal sorting, automation, and the administration of demographic data have all been facilitated by the use of postcodes in Canada, which are analogous to ZIP codes in the United States for mail distribution.
  • Because of the combination of our worldwide datasets and best-in-class technology, Loqate assists businesses all over the world in verifying client addresses.
  • Using our simple to integrate API, our customers may validate customer data right at the moment of collection.
  • Read on to learn more about how Loqate’s address verification solutions might benefit your organization.

Social Security History

  • There are three parts to the number. The nine-digit Social Security number is divided into three parts: The Area Number is the first set of three digits
  • the Group Number is the second set of two digits
  • and the last set of three digits is the Group Number.
  • The Serial Number is the final set of four numbers on the card.
  • Number of Square Miles The Area Number is assigned by the geographical region in which the area is located.
  • Cards were issued in local Social Security offices around the country before to 1972, with the Area Number indicating the state in which the card was obtained.
  • The state in which the applicant resided was not required to be specified because an individual might apply for their Social Security card at any Social Security office in the country.
  • Since 1972, when the Social Security Administration began assigning SSNs and issuing cards from a centralized location in Baltimore, the area number assigned has been based on the ZIP code in the mailing address provided on the application for the original Social Security card, unless otherwise specified.
  • Although it is preferable, the applicant’s postal address need not be the same as their place of abode.
  1. As a result, whether the application is submitted prior to 1972 or after 1972, the Area Number does not necessarily match the applicant’s state of domicile.
  2. As a general rule, numbers were given starting in the northeast and working their way west.
  3. As a result, those living on the east coast have the lowest numbers, while those living on the west coast have the highest.
  • It is important to remember that one should not overuse the term ″geographical code.″ No meaningful geographic information is intended to be sent through this medium.
  • The numbering method was created in 1936 (before computers) to make it simpler for the Social Security Administration (SSA) to hold applications in our Baltimore files, which were categorized by area as well as alphabetically at that time.
  • It was never designed to be anything more than an accounting tool for our internal use, and it was never intended to be anything more than that.
  • Number of Members in a Group Each region is allocated a group number (the middle two (2) digits) ranging from 01 to 99, however the numbers are not assigned in a sequential manner.
  • Group numbers are issued in two groups, the first of which contains the ODD numbers from 01 through 09 and the second of which contains the EVEN numbers from 10 through 98, inside each area number assigned to a State, for administrative reasons.

The EVEN Groups 02 through 08 are utilized first, followed by the ODD Groups 11 through 99, once all of the numbers in group 98 in a specific region have been distributed.

Group numbers are assigned as follows:
ODD – 01, 03, 05, 07, 09-EVEN – 10 to 98 EVEN – 02, 04, 06, 08-ODD – 11 to 99
  • For the most up-to-date SSN area ranges issued to date, consult the most recent Social Security Number Monthly Issuance Table.
  • It is impossible for alleged Social Security numbers to have area numbers that are different from those seen in that table.
  • Serial Number is a unique identifier.
  • Within each group, the serial numbers (the final four (4) digits) are assigned in a sequential manner from 0001 to 9999.

ZIP Codes 101 – What Is a ZIP Code & How to Find It

  • The ″ZIP″ in ZIP Code stands for ″Zone Improvement Plan,″ which is an acronym for ″Zone Improvement Plan.″ A ZIP Code identifies the post office or delivery region to which a letter will be delivered after it has been finalized and sorted for final delivery.
  • ZIP Codes are used to define delivery routes used by mail carriers, as well as locations served by the United States Postal Service.
  • To learn more about how they function and how to understand them, continue reading this article.

What Is My ZIP Code?

We make it simple to do a ZIP Code lookup for the United States Postal Service. Choose one of the options listed below.

Enter an address to see the specific ZIP Code +4. Enter a city and state to see the ZIP Codes for that city. Enter a ZIP Code and see the city or cities it covers.
ZIP Code by Address ZIP Code by City & State Find Cities by ZIP Code
  • What is a ZIP Code and how do they function?
  • What is the meaning of a ZIP Code and how do they work?
  • Instructions on How to Read a ZIP Code
  • ZIP Codes are lines, not shapes, as the name implies.
  • ZIP+4 Codes are used in the United States.

What is a ZIP Code and how do they work?

  • Postal ZIP Codes (ZIP Codes) are five-digit identifiers created by the United States Postal Service to identify particular post offices throughout the United States.
  • A ZIP Code is just the abbreviation for the postal code system used in the United States of America.
  • Most nations, including the United States, have their own names for their postal code systems.
  • For example, the Indian government refers to its system as ″Postal Index Numbers.″ Postal Routing Numbers are what the Czech Republic refers to as their system.
  • As a result, when you hear the term ″ZIP Code,″ think ″United States.″ The 5-digit ZIP Code is divided into three parts: the national area, the region or city, and the delivery area.
  1. The national area is the first component of the ZIP Code, followed by the region or city and the delivery area.
  2. The United States Postal Service (USPS) has divided the country into ten ZIP Code zones, each with its own post office.
  3. They are numbered 0-9.
  • They begin in the northeast and work their way west.
  • The territory covered by each ZIP Code is depicted on the map below: The following is how the first digit of the ZIP Code is assigned:
ZIP Codes Beginning With States
0 Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, Virgin Islands, Army Post Office Europe, Fleet Post Office Europe
1 Delaware, New York, Pennsylvania
2 District of Columbia, Maryland, North Carolina, South Carolina, Virginia, West Virginia
3 Alabama, Florida, Georgia, Mississippi, Tennessee, Army Post Office Americas, Fleet Post Office Americas
4 Indiana, Kentucky, Michigan, Ohio
5 Iowa, Minnesota, Montana, North Dakota, South Dakota, Wisconsin
6 Illinois, Kansas, Missouri, Nebraska
7 Arkansas, Louisiana, Oklahoma, Texas
8 Arizona, Colorado, Idaho, New Mexico, Nevada, Utah, Wyoming
9 Alaska, American Samoa, California, Guam, Hawaii, Marshall Islands, Federated States of Micronesia, Northern Mariana Islands, Oregon, Palau, Washington, Army Post Office Pacific, Fleet Post Office Pacific

How to Read a ZIP Code

  • Following the assignment of the first number in a ZIP Code, the United States Postal Service (USPS) assigns the next two digits based on the location of the city.
  • If an area has a major town or city, the United States Postal Service (USPS) would frequently award it the first ZIP Codes.
  • Following that, the ZIP Codes will be shown in alphabetical order.
  • The first three digits of a ZIP Code, when added together, often indicate the sectional center facility to which that ZIP Code belongs, according to most sources.
  • This facility serves as the mail sorting and distribution hub for a certain zone or geographic area or region.
  1. Some divisional center facilities have numerous three-digit codes given to them, which makes it difficult to locate them.
  2. For example, the Northern Virginia sectional center facility in Merrifield is issued ZIP Codes that begin with the numbers 220, 221, 222, and 223 to distinguish it from other similar facilities.
  3. The fourth and fifth digits of the ZIP Code show the geographical location of the city or municipality.
  • For example, if a letter is received with a ZIP Code of 47722, the United States Postal Service (USPS) can determine that it is in Indiana (4), Vanderburgh county (77), and the region around the University of Evansville (22)

ZIP Codes are Lines, Not Shapes

  • ZIP Codes are not assigned based on geographic boundaries such as state borders. In truth, because ZIP Codes are intended only for the purpose of increasing postal efficiency, they may and do transcend county and state lines. As an illustration: 42223 encompasses Christian County, Kentucky, and Montgomery County, Tennessee
  • 97635 contains sections of Lake County, Oregon, and Modoc County, California
  • 51023 and 51001 are located in both Iowa and Nebraska
  • and 42223 spans Christian County, Kentucky, and Montgomery County, Tennessee.
  • ZIP Codes are not assigned based on geographic boundaries such as state lines.
  • In reality, because ZIP Codes are intended only for the purpose of increasing postal efficiency, they may and do transcend county and state lines without being detected.
  • As an illustration, consider: In Kentucky, the zip code 42223 encompasses both Christian County and Montgomery County; in Tennessee, the zip code 97635 encompasses portions of Lake County and Modoc County; in Iowa, the zip codes 51023 and 51001 are located in both Iowa and Nebraska; in California, the zip code 97635 includes portions of Lake County and Modoc County.

ZIP+4 Codes

  • The United States Postal Service (USPS) modified its ZIP Code system in 1983 to incorporate the new ZIP+4.
  • A ZIP+4 Code is made up of the original five-digit code plus four more digits, resulting in a complete nine-digit postal code.
  • With the whole ZIP Code, you may identify any tiny delivery segment, such as a street, a city block, a group of flats, or even a single address, which gets a large amount of mail.
  • Using a ZIP+4 Code is not essential, as it is often computed automatically during the sorting and processing of the mail.
  • ZIP+4 Codes are formatted as follows: As a general rule, each Post Office Box is assigned a unique ZIP+4 code.
  1. With a +4 on the ZIP Code, the last four digits of the box number are frequently used, as is zero plus the final three digits of the box number, or if the box number is less than four digit, zeros followed by the box number.
  2. Because of this variation, the ZIP+4 Code for each Post Office Box must be searched up individually.
  3. Not all USPS deliverable addresses have a ZIP+4 code allocated to them, despite the fact that the majority

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