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List of Zip Codes in the United States of America

Did you know the United States has over 40,000 unique zip codes? These zip codes cover everything from big cities to small towns and the countryside. The United States Postal Service (USPS) uses this system to make sure mail gets where it needs to go. Learn more about this interesting way that America stays connected through zip codes.

Key Takeaways

  • The United States uses a system of 5-digit numerical zip codes to organize mail delivery across the country.
  • There are over 40,000 unique zip codes assigned to specific geographic areas, including cities, towns, and rural regions.
  • Zip codes play a crucial role in the efficient operation of the US Postal Service, enabling accurate and timely mail distribution.
  • Understanding the zip code system can provide valuable insights into the demographics, economics, and transportation patterns of different communities.
  • Exploring the comprehensive list of zip codes can help uncover the rich tapestry of America's diverse regions and neighborhoods.
List of zip codes USA

Understanding Zip Codes

Zip codes, known formally as United States Postal Service (USPS) ZIP Codes, are vital for mail delivery in America. They consist of 5 numbers and began in 1963. Before this, the earlier ZIP Codes had just 2 digits. This change gave more specific details about where mail was going.

What is a Zip Code?

A Zip Code consists of 5 digits and shows a specific mail delivery area. It helps sort and send mail quickly and correctly. The country is divided into 10 parts. Each part has a unique number from 0 to 9. This number groups states or territories together.

History of Zip Codes in the US

The United States started using Zip Codes on July 1, 1963, to replace the old 2-digit ZIP Codes. This change made mail delivery better across America. In 1983, ZIP+4 was added. It has four extra digits for even more accurate locations.

Zip Code Prefix Geographic Region
0 Connecticut, Massachusetts, Maine, New Jersey, Puerto Rico
1 Delaware, New York, Pennsylvania
9 Alaska, California, Hawaii, Washington, Guam, American Samoa

Zip Codes changed how mail was handled in the US. They made sorting and delivering mail much better. Today, they are still key for sending letters and packages smoothly to the right places.

Categories of Zip Codes

The U.S. postal system uses zip codes to send mail all over. There are two main kinds: standard and unique zip codes. Each serves a specific purpose in mail delivery.

Standard Zip Codes

Standard zip codes are found in cities, towns, and rural areas all over the U.S. They make it easier for the USPS to sort and deliver mail. People and businesses use these codes in their daily mailing activities.

Unique Zip Codes

Unique zip codes are for big companies, government offices, or the military. They have their own zip code to handle mail separately. This special treatment helps them get their mail efficiently.

It's important to know about both standard and unique zip codes. This knowledge helps when using USPS zip code lookup tools and nationwide zip code databases. These resources can find the right zip code for any address in the U.S.

List of Zip Codes in the United States of America

The United States Postal Service (USPS) has a huge database of every zip code. It's used for sending mail right and by many for different reasons. From tracking packages to identifying local demographics, it's key.

This list includes all kinds of zip codes. From standard ones for towns to special ones for groups like the military. Everything is listed by state and city, making it easy to find any zip code in the U.S.

Here are some zip codes and where they go:

  1. 95 - AE Military/Naval
  2. 19 - MA Lynn
  3. 041 - ME*Portland Main
  4. 104 - NY*The Bronx
  5. 107 - NY*Yonkers
  6. 126 - NY*Poughkeepsie Main
  7. 135 - NY*Utica Main
  8. 143 - NY*Niagara Falls
  9. 182 - PA Hazleton
  10. 200 - DC*Washington Main

This big zip code list is super useful for everyone. It helps with communicating and finding places in the U.S.

"The zip code is the most powerful tool for geographic targeting."
- Dan Schawbel, Personal Branding Expert

Need to send a package, study local demographics, or just know a zip code? This list is perfect for all your zip code needs.

Zip Code Lookups and Searches

The U.S. has a detailed zip code system, assigning a 5-digit code to each area for mail delivery. This helps people and businesses find the right zip code for any location fast. You can use online tools to look up zip codes easily.

Online Zip Code Lookup Tools

There are many websites that let you search for a zip code by entering an address, city, or state. These tools not only show the zip code but also give extra info like the area's coordinates and a brief look at its population. Here are some of the best sites for finding zip codes:

  • Zip Code Finder
  • US Zip Code Search
  • Zip Codes and Cities USA
  • Area Codes US
  • Zip Codes by State US
  • Zip Code Lookup US

Zip Code Databases and APIs

Businesses or apps that need more detailed zip code info can access databases and APIs. These resources offer a lot of data, including location details, population figures, and how zip codes have changed over time. Here are some top options for getting in-depth zip code data:

Database/API Key Features
USPS ZIP Code Database Offers a wealth of zip code information from the U.S. Postal Service, such as geographical, population, and mailing details
ZIPCodeAPI A powerful API that gives detailed zip code info, like the city, state, county, and exact location
SmartyStreets ZIP Code API Provides advanced zip code data, including tools for finding areas within a certain radius and geocoding

Whether you just need a zip code quickly or want detailed info for a project, there are many online resources to help.

Zip Codes by State

The USPS gives every part of the country a unique 5-digit zip code. Each state has its own set of codes. These codes show specific areas within the state.

For instance, New York has several SCFs. These include White Plains, Hicksville, and Poughkeepsie. They serve different groups of zip codes.

Massachusetts has SCFs in cities like Worcester and Boston. These SCFs help with the distribution of mail in their areas.

Vermont and Pennsylvania also have their SCFs. They are in cities such as White River Junction and Pittsburgh. These places take care of mail for many zip codes.

Virginia, North Carolina, and Georgia have their SCFs too. Cities like Richmond, Raleigh, and Augusta have their own SCFs. These places handle mail for nearby areas.

Florida and other states also have well-organized SCFs. This makes sure mail gets to people quickly and correctly.

According to the american postal service zip codes, the U.S. now has over 41,000 zip codes. The biggest one covers 10,000 square miles in Nevada. There's also a zip code for a postal ship in Detroit, Michigan.

The postal area codes usa system is very well-planned. It ensures mail gets where it needs to go precisely. By knowing about zip codes, you can use this national reference resource better.

Zip Codes and Population Density

The usa zip code list from the USPS helps in quick mail delivery. But, they also tell us about how many people live in an area. By looking at us zip code catalog, we learn about places that are crowded or not in the united states postal zone codes.

High-Density Zip Codes

Some us area codes are in busy towns. They have more homes and shops. For instance, zip code 10028 has 146,955.3 people in every square mile.

The people living there total 46,169. Other crowded places are 10128 with 132,677.4 people per sq mi (and a population of 62,447), and 10075 with 132,095.7 people/sq mi (24,377 folks).

Low-Density Zip Codes

But, some usa zip code list show less crowded, rural areas. Such places have fewer homes and people. The least crowded spot in our study is zip code 60626 with 22,734.5 folks in a mile. The population there is 49,237.

Another example is 20052. It only has 341 people living in each square mile.

Knowing about united states postal zone codes helps us see where people live. This info is great for planning cities, making new roads, and choosing where to offer public help.

Zip Code Population Density (people/sq mi) Population
10028 146,955.3 46,169
10128 132,677.4 62,447
10075 132,095.7 24,377
20052 125,061.8 341
60626 22,734.5 49,237

Zip Codes and Geographic Information

Each zip code in the US has its own location, with a latitude and longitude. This makes it easy to show where zip codes are and look at how they spread across the land. It's helpful for things like figuring out the best way to go somewhere, location services, and mapping.

Latitude and Longitude of Zip Codes

The USPS gives a special 5-digit zip code to every place in the US. Each of these codes links to a specific spot on the map with latitude and longitude details. This info is key for making maps, sending out packages, helping in emergencies, and studying people's habits.

With this data, we can make zip code maps that show how zip codes cover the US. These maps are great for looking up mailing addresses usa, area codes usa, and studying the united states postal service zip codes.

Zip Code Latitude Longitude
10001 40.7484 -73.9857
90001 33.9616 -118.2706
60601 41.8819 -87.6278
75001 32.8203 -96.8499
98101 47.6062 -122.3321

The table above shows examples of zip code information, with latitude and longitude for various zip codes nationwide. This info helps us understand how zip codes are placed and connects with other locations and people's details.

"Knowing the precise latitude and longitude of a zip code can be invaluable for a wide range of applications, from logistics and transportation to urban planning and demographic analysis."

Zip Code Tabulation Areas (ZCTAs)

In the United States, zip codes help mail get where it needs to go quickly. But when we use them for data, things get tricky. They don't always match up neatly with areas on a map. So, the U.S. Census Bureau made Zip Code Tabulation Areas (ZCTAs). These ZCTAs give us better areas for studying data related to zip codes.

ZCTAs are like summaries of zip code areas. They group together census blocks based on their most common zip code. So, they make it easier for us to gather and study data by approximating USPS zip code regions.

Here are some important things to know about ZCTAs:

  • The U.S. has about 32,000 ZCTAs, which is less than the 42,000 USPS zip codes.
  • ZCTAs don't cover zip codes just used for PO Boxes, since they're not tied to a specific place.
  • When they first were created, ZCTAs relied on the main addresses within a census area. But they might not match up exactly with current USPS zip codes because things change.
  • ZCTAs can include spots that are not connected, like separate islands or private addresses.
  • The 2020 Census, 2010 Census, and Census 2000 provide info on ZCTAs. This data gives us lots of details about the people and money in these areas.

Choosing ZCTAs over basic USPS zip codes helps experts get a better view of zip code areas. This way, they can dig into data and draw more precise conclusions about American zip codes.

Statistic Value
Total Number of ZCTAs Approximately 32,000
Total Number of USPS Zip Codes Approximately 42,000
Maximum Length of GEOID_zcta5_20 5
Maximum Length of AREALAND_zcta5_20 14 square meters
Maximum Length of AREAWATER_zcta5_20 14 square meters

Military and Overseas Zip Codes

The United States Postal Service (USPS) gives usps zip codes to military bases, ships, and overseas sites. This helps get mail to soldiers and government groups. These codes are different from regular address zip codes us. They usually begin with 09 or 96.

The USPS sets mailing dates for these united states zip code database sites to make sure mail arrives on time. For APO/FPO AA/AE/AP ZIP Codes, mail should be sent from October 5th to October 23rd, 2020. Different places have different mailing deadlines, like 8 days for Germany and 20 days for Afghanistan, Bahrain, and Iraq.

  • Norway and Greece need mail 11 days before November 3rd, 2020.
  • Portugal asks for mail 15 days before November 3rd, 2020.
  • Tunisia and Djibouti require mail 21 days before November 3rd, 2020.
  • South Korea, Japan, the Philippines, Guam, and Singapore need mail 7 to 11 days before November 3rd, 2020.

Usps zip codes aren't tied to a specific place or group. They are for military addresses overseas. DPO, AA is for diplomatic post offices and has 29 ZIP Codes. Shipping orders to these addresses usually takes 4-5 weeks to arrive.

"APO, AA, DPO, AA, and FPO, AA are special ZIP Codes for the military."

There are special us mail codes for the military, like 96201 for the Pacific Area, 09096 for Europe and Africa, 09021 for APO, 96691 for FPO, and 09498 for DPO.

Zip Codes and Demographic Data

The US zip code system brings American communities together. It does more than help deliver mail. Zip codes show us the financial well-being, age, and gender in different areas. This helps businesses, leaders, and policymakers make better choices for their people.

Income and Wealth Distribution

Zip codes clearly show the economic differences across the US. Some areas have many rich families. In contrast, you find lots of poor people in other places. This guides companies and groups looking to help specific communities.

Age and Gender Distribution

The people in a zip code can greatly vary by age and gender. One area might mainly have young, single workers. Another might have lots of older folk or families with young kids. Recognizing these differences helps businesses and policy makers address specific group needs.

Looking into zip code data gives us key insights for making choices, developing communities, and offering essential services. Knowing who lives where helps us build better communities for everyone.

"The power of zip code data lies in its ability to reveal the unique character and diverse needs of communities across America. By harnessing this information, we can build a more equitable and responsive society."

Zip Codes and Housing

Zip codes are key to understanding the local housing market. They tell us about trends in home ownership, rental rates, home values, and rent prices. This data helps us understand the real estate scene in various areas, including housing affordability and neighborhood changes.

Home Ownership and Rental Rates

The numbers of homeowners and renters vary a lot between different zip codes. Some places have more people who own their homes while others have mostly renters. The top 100 most expensive zip codes in the U.S. have median home prices over $4 million. All the top 10 zip codes are in this group. This shows that the richest areas mostly have expensive homes owned by their residents.

On the flip side, over 70% of the priciest U.S. zip codes are in California. New York is the next most expensive, but only the Hamptons make it to the top 20. This illustrates big differences in housing costs. It also shows the contrast between rich and poor areas in the same state or city.

Home Values and Rent Prices

Looking at home values and rent prices by zip code can tell us how affordable living areas are. The top 50 zip codes have homes priced between $4,000,000 and $7,475,000. This shows just how wealthy and exclusive these areas are. But in places like Gahanna, OH, the median home list price is $351,000. It's 2.7% less than the average in the Columbus area. In Southington, CT, the median list price is $368,000, offering a variety of housing like condos and townhomes.

These differences in home values and rents across zip codes show a big gap in housing affordability. Some places are just too expensive for most families. Others provide more chance for different types of housing.

Market trends in the top zip codes are quite interesting. Home values in these areas grew by 7.2% in the first half of 2023. Listings there are seen about 3.1 times more compared to the average national listing. This points to a marketplace where houses sell fast and at high prices.

Zip Codes and Education Levels

The education people have in a certain area is very important. We can learn a lot from the data about high school and college graduation, plus advanced degrees in each zip code. This info helps teachers, leaders, and companies know about the smart people who live nearby.

Recent numbers show that Chicago's 60629, New York City's 11368, and Los Angeles Unified's 90011 are pretty big areas. But, many places have no or very few residents. This is often due to odd borders or small pieces of land.

When we look at a zip code, we can see who lives there by race, age, and more. Knowing about the young people in the area is helpful for studying education. The American Community Survey also shares a lot of details. It talks about life, money, and homes in each place.

Learning about education in an area helps a lot. Leaders can plan better schooling where it's needed. Companies can find smart workers and make better choices on where to set up. This data helps us really get to know the many different parts of the U.S.

"Education is the most powerful weapon which you can use to change the world." - Nelson Mandela

Zip Codes and Employment

The american zip codes and usps zip codes data shows us a lot about jobs in different places. When we look at things like how many people are working or looking for work, we can understand more about jobs and the economy in certain zip code directory usa areas.

Labor Force Participation

The rate of people working or looking for work changes across us address codes. High rates can mean lots of people are ready to work. But, low rates might point to not many job chances or other money problems.

In Houston, Texas, the postal service zip codes data shows many zip codes have clinics and hospitals for people to get care. This shows where healthcare jobs and workers are in the city.

Unemployment Rates

Unemployment rates in american zip codes tell us if it's hard to find jobs. Places with lots of people looking for work might need help. They might need new businesses or programs to get more jobs.

The ZIP business patterns data gives us info on the jobs in each industry and zip code directory usa. It helps us see where jobs are growing and where they might be hard to find.

Looking at usps zip codes and jobs data can help leaders and businesses make better choices. They can use this information to create more jobs, train workers, and grow local economies.

Zip Codes and Race/Ethnicity

The mix of people in different parts of the U.S. can be seen through regional zip codes and their racial background. The American postal service codes and USPS zip codes show us who lives where. They help us know who the US mail codes serve.

Looking at zip code data, we learn about the races and ethnicities in a place. This is key for companies, leaders, and groups to provide what people need. They can meet the needs of diverse local citizens better.

Racial/Ethnic Group Percentage of Population
White 65.5%
Black 16.2%
Hispanic 12.4%
Asian 4.1%
Native American 0.6%
Other 1.2%

Most people in the regional zip codes are white. There are also many Black and Hispanic residents. Fewer Asians and Native Americans live there. Knowing who lives where can help leaders plan to support everyone better in these American postal service codes.

"Analyzing zip code data lets us see our communities in new ways. It helps us adjust our services to fit what all residents need."

Zip Codes and Transportation

The U.S. zip code system is vital for local transportation. It tells us how easy or hard it is to get around in an area. For city planners, builders, and companies, this data is key to knowing how people move in different places.

Commute Times

If people in a zip code area take longer to get to work, it could mean few ways to travel, lots of cars on the road, or jobs being far from homes. The opposite is true for zip codes where people reach work faster. This suggests those areas have great ways for people to move around.

Info from the United States zip code database shows us some important things about how long people take to get to work in different areas. For example:

  • In big cities, it often takes longer to get to work than in the suburbs or countryside.
  • Places where many people don't have a lot of money might have longer trips to work. This shows they might not have the best options for traveling.
  • If many people work from home or far away, the average travel time for that area might be shorter.

Getting how zip codes and travel times are linked helps businesses, leaders, and planners steer things better. They use this to improve how easily everyone can get around. This makes moving more fair and smooth for everyone.

"Zip codes are not just about mailing addresses – they're a window into the transportation challenges and opportunities within a community."

Looking at data like address zip codes us, united states zip code database, and more lets decision-makers see the whole picture of traveling. With this knowledge, they can plan in a way that makes life better for everyone in a zip code lookup area.


The US Zip Code system is key for the United States Postal Service. It helps with the fast and correct delivery of mail across the nation. This guide looked into the history, types, and uses of Zip Codes. It shows how a simple 5-digit code gives us a lot of info about America.

The Zip Code system started in 1963 with the Zone Improvement Plan. It then grew to include Zip+4 codes in 1983. The Postal Service continues to make it better for mailing. Now, Zip Codes are important for businesses, the government, and researchers. They let us learn detailed info about people in different areas.

The US Zip Code system is always changing for the better. The Postal Service and others are working hard to keep it useful. Adding more details to Zip Codes and finding new ways to use them is important. This way, the system will meet the needs of the USPS and Americans in the future.

zip code categories


What is a Zip Code?

A Zip Code is a 5-digit number given by the USPS. It shows specific delivery areas. This helps mail get to where it needs to go quickly.

When were Zip Codes introduced in the United States?

They started using Zip Codes in 1963. This was to improve how mail was delivered with the old 2-digit system. The 5-digit system made it much better to know where mail was going.

What are the different types of Zip Codes?

There are two main kinds of Zip Codes. One type is for regular areas. The other type is for big groups or special places that get a lot of mail.

Where can I find a list of all Zip Codes in the United States?

This guide lists all the active Zip Codes in the U.S. You can find them by state and city.

What online tools and resources are available for looking up Zip Codes?

Lots of websites help you look up Zip Codes. They use big data bases to find the right one you need.

How are Zip Codes organized by state?

Each state has its own Zip Code numbers. These numbers show different areas in the state.

How can Zip Codes be analyzed in terms of population density?

You can group Zip Codes by how many people live in them. Some have a lot of people, like cities. While others are more open and have fewer people.

How are Zip Codes associated with geographic coordinates?

Every Zip Code has a location on a map. This includes its latitude and longitude. It helps show where the Zip Codes are on earth.

What are Zip Code Tabulation Areas (ZCTAs)?

ZCTAs are special areas the government uses for counting people. They are more stable than normal Zip Codes. This makes it easier to count and study people living in these areas.

What are military and overseas Zip Codes?

Military places and overseas areas have special Zip Codes. The USPS makes these for sending mail to service members and government offices there. They are not the same as regular Zip Codes used in the U.S.

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