ZIP code demographics API: every US ZIP to county, time zone and Census data
Look up any US ZIP code and get the city, state, county and FIPS code, time zone, latitude and longitude, and Census ACS figures: population, median age, household income, home value and rent. Radius search, nearest ZIP and city-to-ZIPs are included. REST API and MCP server.
Real Ziplore rows (Census ACS 2020-2024 5-year estimates)
| ZIP | City | County | Time zone | Population | Median age | Median household income | Median rent |
|---|---|---|---|---|---|---|---|
| 10001 | New York, NY | New York County | America/New_York | 30,511 | 35.8 | $129,852 | $3,361 |
| 60614 | Chicago, IL | Cook County | America/Chicago | 70,693 | 31.1 | $136,448 | $2,030 |
| 30309 | Atlanta, GA | Fulton County | America/New_York | 32,479 | 32.9 | $114,072 | $2,195 |
| 78705 | Austin, TX | Travis County | America/Chicago | 33,238 | 21.2 | $32,380 | $1,571 |
| 94107 | San Francisco, CA | San Francisco County | America/Los_Angeles | 31,823 | 35.2 | $182,897 | $3,401 |
Source: Ziplore data (US Census ACS 5-year estimates and Census geographies), as published in the free CyberMax-tools/us-zip-codes-demographics dataset.
Ziplore vs the alternatives
Published prices, each checked on the date shown; prices change, so confirm on each site.
| Product | Price | Free | Checked |
|---|---|---|---|
| Ziplore API | $19/month for 60,000 lookups; $5 once for 12,000 | 200 calls every day, no key | live |
| Zipcodebase | Developer $45/month for 60,000; Small $75 for 200,000 | 5,000 requests/month | 2026-09-27 |
| ZipCodeStack | Small $34.99/month for 70,000; Medium $59.99 for 250,000 | 300 credits | 2026-09-27 |
| ZipCodeAPI | annual only: Small $199/year (200 requests/hour) | 10 requests/hour | 2026-09-27 |
| API Ninjas (shared quota) | Developer $39/month for 100,000 calls across all its APIs | 3,000 calls/month, evaluation only | 2026-09-27 |
Why teams pick Ziplore
- Zipcodebase's 60,000-call quota for under half its $45 price.
- Demographics on every lookup (income, rent, home value, age, population), not only city and coordinates.
- A free tier every day (200 calls) and a $5 pack that never expires.
- Instant key, no account; the same key works on the MCP server for AI agents.
Try it in one call
curl 'https://ziplore.cybermax-tools.workers.dev/api/zip?zip=10001,60614'FAQ
Is there a free ZIP code API with demographics?
Yes: Ziplore gives 200 lookups a day with no key, each with Census demographics. Zippopotam.us is free too but returns only place names and coordinates.
Why not Zipcodebase?
Zipcodebase is a good ZIP and postal-code API ($45/month for 60,000). Ziplore covers US ZIPs only, adds Census demographics to every lookup, and costs $19/month for the same 60,000 calls.
Where does the data come from?
US Census Bureau ZCTA geographies and American Community Survey 5-year estimates, plus county and time zone mapping.
Can I search by radius?
Yes: radius search around a ZIP or a point, nearest ZIP to coordinates, and all ZIPs for a city.