About
Zipcodebase is a postal code API that returns location data for ZIP and postal codes worldwide. It supports code-to-location lookup, city and state searches, radius matching, and distance calculations through REST endpoints that return structured JSON.
The service includes coverage for 200+ countries and documentation for common programming languages. The free plan includes 5,000 searches per month, 1 concurrent request, and a 10-mile radius or distance limit, which makes it suitable for small developer projects that need basic postal code validation and geolocation queries.
- Worldwide postal code lookup API
- 200+ country data coverage
- 5,000 searches per month
- 1 concurrent request limit
- 10-mile radius and distance
- REST JSON endpoints
- City, state, and radius search
- Distance calculation by postal code
Free Tier Value
This free tier is a capped monthly plan with no credit card shown, so it has real recurring value rather than a trial. The cheapest paid plan is the Developer plan at $45/month, and the free plan gives the same core API access with 5,000 searches, one concurrent request, and a tighter 10-mile radius, so it’s worth about the full entry-plan price but with lower capacity and private-use-only limits.
What's included in the free tier
- Access to 5,000 searches per month.
- 1 concurrent request.
- Up to 10-mile radius/distance searches.
- Private use rights.
- HTTPS encryption.
- Self-service onboarding.
- E-mail support.
See Zipcodebase pricing for current limits.
Paid plans
Developer
- searches/month
- 60,000
- concurrent requests
- 1
- radius/distance
- 100-mile
- 60,000 searches
- 1 concurrent request
- 100-mile radius/distance
- Commercial use
- Service Level Agreement
- HTTPS encryption
- Concierge onboarding
- Personal support
Small
- searches/month
- 200,000
- concurrent requests
- 3
- radius/distance
- 200-mile
- 200,000 searches
- 3 concurrent requests
- 200-mile radius/distance
- Commercial use
- Service Level Agreement
- HTTPS encryption
- Concierge onboarding
- Personal support
Medium
- searches/month
- 1,900,000
- concurrent requests
- 5
- radius/distance
- 500-mile
- 1,900,000 searches
- 5 concurrent requests
- 500-mile radius/distance
- Commercial use
- Service Level Agreement
- HTTPS encryption
- Concierge onboarding
- Personal support
Large
- searches/month
- 10,000,000
- concurrent requests
- 10
- radius/distance
- 500-mile
- 10,000,000 searches
- 10 concurrent requests
- 500-mile radius/distance
- Custom features
Very Large
- searches/month
- 40,000,000
- concurrent requests
- 20
- radius/distance
- 500-mile
- 40,000,000 searches
- 20 concurrent requests
- 500-mile radius/distance
- Custom features
Premium
- searches/month
- 70,000,000
- concurrent requests
- 50
- radius/distance
- 500-mile
- 70,000,000 searches
- 50 concurrent requests
- 500-mile radius/distance
- Custom features
Pricing extracted from Zipcodebase's pricing page. Always verify current pricing before committing.
