API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type.
What it does
- Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly
- Radius search — centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result
pct_inside overlap percentage for spatial queries
- Unified lookup endpoint — accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
- Autocomplete/typeahead — cities, counties, metros, states, FSAs, ZIPs
- Point-to-point distance — between any two postal points
- Census ACS demographics — 2011–2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
- Boundary lookups — Census tracts, congressional districts, state legislative areas, school districts — with computed intersection percentages per ZIP
What makes it different
- Licensed commercial data — not commodity or scraped sources
- Canadian postal coverage — most peers in this space are US-only
- True spatial radius — not just centroid haversine
- 14 years of historical ACS depth via API — unusual outside of raw Census downloads
- One endpoint for all of North America — no country-detection or input-routing logic to maintain on the client side
Pricing
- Free — 2,500 lookups/day, no credit card required, no expiry
- Developer — $49/mo, 100K credits, 300/min
- Professional — $149/mo, 350K credits, 300/min
- Business — $499/mo, 1.5M credits, 600/min
- Credit packs — one-time, from 25K ($19) up to 2M ($799)
Resources
