What is the U.S. ZIP Code Finder?
This is a free tool for finding U.S. ZIP codes. Search a city or town to get its 5-digit ZIP code, or enter a ZIP code to see which cities use it. It covers all 50 states, Washington DC, Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, the Northern Mariana Islands and military mail (APO, FPO and DPO), with about 41,700 ZIP codes in total.
It helps with online shopping, shipping and returns, tax and insurance forms, job and school applications, and any website that asks for a U.S. address.
How to find a ZIP code
- City to ZIP code: choose “City → ZIP Code”, type a city such as Austin, Brooklyn or Beverly Hills, and optionally narrow it with the state menu.
- ZIP code to cities: choose “ZIP Code → Cities” and type a full ZIP like 90210, or the first digits like 100 to list every match.
- Copy the ZIP code, or open the area on a map to check it.
Big cities have many ZIP codes. For the exact ZIP code, or the 9-digit ZIP+4, of a street address, use the USPS ZIP Code Lookup.
How ZIP codes work
ZIP stands for Zone Improvement Plan. The United States Postal Service introduced ZIP codes in 1963 to sort mail faster, and added the four-digit ZIP+4 extension in 1983. A standard ZIP code has five digits, for example 90210.
Reading the digits
The first digit points to a broad region: 0 is the Northeast (and Puerto Rico), 1 is New York, Pennsylvania and Delaware, 2 is the Mid-Atlantic and Carolinas, 3 is the Southeast, 4 is Indiana, Kentucky, Michigan and Ohio, 5 is the Upper Midwest, 6 is Illinois, Kansas, Missouri and Nebraska, 7 is Arkansas, Louisiana, Oklahoma and Texas, 8 is the Mountain West, and 9 is the West Coast, Alaska, Hawaii and the Pacific territories. The next two digits point to a mail-sorting centre, and the last two to a post office or delivery area. Codes starting with 0 keep their leading zero.
ZIP codes are not boundaries
A ZIP code is a set of mail delivery routes, not an official border. A city can have many ZIP codes, and one ZIP code can cover parts of more than one city or county.
Writing a U.S. address
The usual order is street address, then the city, the two-letter state abbreviation and the ZIP code, for example: 123 Example Street, Beverly Hills, CA 90210.
Example U.S. ZIP codes
| ZIP code | City | State |
|---|---|---|
| 90210 | Beverly Hills | California |
| 10001 | New York | New York |
| 60601 | Chicago | Illinois |
| 02108 | Boston | Massachusetts |
| 33101 | Miami | Florida |
| 77001 | Houston | Texas |
| 98101 | Seattle | Washington |
| 96801 | Honolulu | Hawaii |
| 99501 | Anchorage | Alaska |
| 20500 | Washington (White House) | District of Columbia |
ZIP code FAQ
How many digits is a U.S. ZIP code?
A standard ZIP code has five digits, for example 90210. The extended ZIP+4 format adds a hyphen and four more digits, for example 90210-1234. Codes that start with 0 keep the zero.
What is a ZIP+4 code?
It is the five-digit ZIP code plus four digits that narrow delivery down to a block, building or group of addresses. This finder shows the five-digit ZIP only. Use the USPS ZIP Code Lookup to get the ZIP+4 for an address.
How do I find a ZIP code?
Type the city or town into the finder. Choose a state to narrow the list if several places share a name, such as Springfield.
Can a city have more than one ZIP code?
Yes. Large cities have dozens, and one ZIP code can cover parts of more than one city or county. Searching a city lists every ZIP code assigned to it.
Is a ZIP code the same as a postal code?
Yes. ZIP code is the name used in the United States for its postal code. Other countries use names such as postcode or postal code.
Does it include every ZIP code?
It has about 41,700 ZIP codes covering all 50 states, DC, Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, the Northern Mariana Islands and military mail. Very new ZIP codes, and some codes assigned to a single organisation, may be missing, so confirm with the USPS when it matters.
Is this the official USPS website?
No. This is an independent tool and is not affiliated with the United States Postal Service. See our Disclaimer.
ZIP code data: GeoNames, licensed under CC BY 4.0.