zip-codes.com valid

ZIP Codes API

Location intelligence for the US and Canada: postal lookups, every geographic overlap a ZIP Code has (counties, places, tracts, districts, school districts, with shares), a normalized 14-year ACS demographic series, spatial radius search and US address matching to ZIP+4. ZIP boundaries are carrier-route derived and refreshed quarterly, not Census ZCTAs. Free accounts: 2,500 credits/day, 60 requests/minute. Base URL https://api.zip-codes.com; authenticate with the X-Api-Key header (?key= also wor

Authority
54 reach 9 · trust 5 · quality 25 · freshness 15
Tier
listed
llms.txt
https://www.zip-codes.com/llms.txt
llms-full.txt
https://www.zip-codes.com/llms-full.txt
Sections
14
Links
49
Size
15049 bytes
Popularity rank
#114556
Country
US
First seen
2026-10-18T15:08:56.111Z
Last checked
2026-10-18T21:22:21.619Z
Badge
Agent Web Map badge for zip-codes.com

Own this site? Verify it

Verified listings rank first, reach the featured tier (do-follow links) at 60 authority instead of 70, get a link in our llms.txt, a badge, breakage alerts, an editable profile, lookup analytics, and instant re-crawls. Prove ownership with any one of these, then call the verify endpoint (or your agent can do all of it, also over MCP).

  1. llms.txt link (recommended) — add this line to your llms.txt:
    - [Agent Web Map](https://agentwebmap.com/domain/zip-codes.com?verify=awm_27089a07e5116ad8913112c5c715c6d5)
  2. DNS — add a TXT record:
    _agentwebmap.zip-codes.com. TXT "awm-verify=awm_27089a07e5116ad8913112c5c715c6d5"
  3. Meta tag — in your homepage <head>:
    <meta name="agentwebmap-verify" content="awm_27089a07e5116ad8913112c5c715c6d5">
  4. Well-known file — serve the token at:
    https://zip-codes.com/.well-known/agentwebmap-verify.txt  ->  awm_27089a07e5116ad8913112c5c715c6d5

Then: curl -X POST https://agentwebmap.com/v1/sites/zip-codes.com/verify — the response contains your API key. Full docs.

Machine-readable: GET /v1/resolve?q=zip-codes.com · GET /v1/domain/zip-codes.com · this page as Accept: application/json or text/markdown · MCP lookup_domain · watch this domain