What Is My ZIP Code?

Find the ZIP code for your current location. See an instant estimate, or share your location once for the exact ZIP code of the nearest address.

Estimated ZIP code (from your internet connection)
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Exact ZIP code (from your device location)

What a ZIP code tells you

ZIP (Zone Improvement Plan) codes were introduced by the US Postal Service in 1963 to speed up mail sorting. The five digits narrow down from a broad region to a local delivery area:

  • First digit: a group of states, from 0 in the Northeast to 9 on the West Coast.
  • Second and third digits: a regional mail processing center.
  • Last two digits: the local post office or delivery zone.

ZIP code regions by first digit

First digitStates (examples)
0Connecticut, Massachusetts, Maine, New Jersey, Puerto Rico
1Delaware, New York, Pennsylvania
2DC, Maryland, North Carolina, Virginia, West Virginia
3Alabama, Florida, Georgia, Mississippi, Tennessee
4Indiana, Kentucky, Michigan, Ohio
5Iowa, Minnesota, Montana, Dakotas, Wisconsin
6Illinois, Kansas, Missouri, Nebraska
7Arkansas, Louisiana, Oklahoma, Texas
8Arizona, Colorado, Idaho, Nevada, New Mexico, Utah, Wyoming
9Alaska, California, Hawaii, Oregon, Washington

When you might need your ZIP code

  • Paying at the gas pump, which often asks for the billing ZIP code of your card. That is the ZIP on your card statement, not where you are standing.
  • Filling in shipping forms, store locators and delivery apps.
  • Checking local tax rates, weather alerts or voting information.

Want your full coordinates and address? Use What is my location.

Last reviewed October 2026.

Frequently asked questions

How does this find my ZIP code?

It first estimates your ZIP code from your internet connection, which needs no permission. For a precise answer, press the button to share your device location once; the coordinates are then matched to the postal code of the nearest address.

Why is the IP-based ZIP code different from mine?

Internet providers register their addresses to hubs that can cover several ZIP codes, and VPNs move you elsewhere entirely. Use the precise option, or check your mail, a bill or your bank statement for your exact ZIP code.

What is a ZIP+4 code?

ZIP+4 adds four extra digits to the five-digit ZIP code, such as 78701-1234, to narrow mail delivery down to a block, building or PO box group. The USPS ZIP code lookup on usps.com can give the full ZIP+4 for an address.

Do ZIP codes follow city lines?

Not always. ZIP codes are delivery routes created by the US Postal Service, so one ZIP can cover parts of several towns and a big city can have dozens of ZIP codes.

Does this work outside the United States?

Yes. Outside the US it shows your postal code, such as a UK postcode or Canadian postal code, when one is available for your location.