ZIP code lookup
Find the city and county behind a ZIP code.
Use it in your app
GET /postal/33139?country=US
This page is that call, running from your browser. Every field shown rides one lookup, and the same shape covers the countries listed on /postal. Fields vary by country. Same endpoint on every plan, one pooled request per lookup.
QUESTIONS
- What comes back?
- The city, state, reference county with its FIPS code, timezone, and coordinates where available. Additional statistics appear only when included in the response.
- Why does my ZIP show a different city name?
- The result shows one reference place name for the ZIP. A ZIP can serve more than one neighborhood or place, so this may differ from the city name in your address.
- Do ZIP+4 codes work?
- Type the full thing and the first five digits are used. The +4 narrows to a block or building and has no separate record.
- Can I do this from code?
- Yes. This page is GET /postal/{code}?country=US. The same endpoint covers the countries listed on /postal, with fields varying by country. One pooled request per lookup.
- I have a whole spreadsheet of ZIPs.
- Drop the file on /bulk. Every ZIP column gets city, state, county, and the rest back as new columns.