Why does the ZIP shown differ from my mailing ZIP?

A ZIP code is a mail delivery route, not a drawn boundary, so a single point can sit near several routes. The page lists every ZIP used by the nearest city; your mailing ZIP is the one printed on your post.

Can one address have more than one ZIP code?

Large buildings, campuses and PO box banks can carry their own unique ZIP code alongside the street ZIP for the surrounding area.

ZIP code locator

What ZIP code am I in?

Find the ZIP code where you are standing, or look up any of the 33,000+ US ZIP codes by number.

ZIP codes covered: 33,000+
Cities: 32,000+
Counties: 3,144
Cost: Free

Quick answer

Allow your browser to share your location and this page matches the reading against our coordinate table to name the nearest city and list the ZIP codes used there. If you would rather not share location, type any ZIP code to see the place, county and statistics behind it. Your postal ZIP is also printed on any recent mail or bank statement.

Find my ZIP code

Nothing leaves your device — the match runs in your browser.

Your browser asks permission first and the coordinates stay on your device — the match runs locally against our coordinate table. Nothing is stored or sent to a server.

Look up a ZIP code

Population, income, home values, rent and the county behind any ZIP.

Any of the 33,000+ US ZIP codes — population, income, housing and the county it sits in.

How to find your ZIP code

Three reliable ways to identify the ZIP code for where you are.

Use your location. The button above reads your device position after you approve the browser prompt and returns the nearest city with the ZIP codes used there.
Read your post. Any recent letter, parcel label, bank statement or utility bill prints the delivery ZIP code for the address.
Search by place. Open your city profile or your county and the page lists every ZIP code inside it.

ZIP code FAQ

What people ask about ZIP codes and location.

Is my location shared with anyone?

No. The browser asks permission and the coordinates are matched inside your browser against the coordinate table shipped with the page. Nothing is uploaded, logged or stored.

Why is the ZIP shown different from my mailing ZIP?

A ZIP code is a mail delivery route rather than a drawn boundary, so one point can sit close to several routes. The result lists every ZIP the nearest city uses; your mailing ZIP is the one printed on your post.

Can an address have more than one ZIP code?

Yes. Large buildings, university campuses, military bases and PO box banks are often assigned a unique ZIP code alongside the street ZIP covering the surrounding blocks.

What is a ZCTA?

A ZIP Code Tabulation Area is the Census Bureau's statistical approximation of a USPS delivery ZIP. Every population, income and housing figure on this site is reported for the ZCTA, because the Census does not publish statistics for delivery routes themselves.

Sources & transparency

US Census Bureau, American Community Survey 2019-2023 5-year estimates — ZIP Code Tabulation Area population, income and housing
US Census Bureau 2020 ZCTA-to-county relationship file — ZIP code to county and city assignment

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.