Zipcodebase Alternative: zipcodestack vs Zipcodebase (2026)

Monthly list prices from both pricing pages in October 2026.

Price per request

Plan	zipcodestack	Zipcodebase
Free	300 requests, commercial use	5,000 searches, private use only
Entry	$34.99 for 70,000	$45 for 60,000
Mid	$59.99 for 250,000	$75 for 200,000
Large	$159.99 for 2,500,000	$240 for 1,900,000

All zipcodestack plans, including yearly billing, are on the pricing page.

At 2.5 million requests, zipcodestack costs about $0.064 per 1,000 requests; Zipcodebase’s 1.9 million plan works out to about $0.126 per 1,000.

Limits

Radius: Zipcodebase limits the radius by plan (10 miles on the free plan, 100 on Developer, 200 on Small, 500 on Medium and up). zipcodestack’s radius endpoint accepts up to 500 km or miles.
Concurrency: Zipcodebase plans list 1 to 50 concurrent requests. zipcodestack paid plans have no rate limit.

Endpoints

zipcodestack offers search (100 codes per request), validate, distance, radius, polygon, match, codes by city and state, provinces, reverse geocoding (coordinates to postal code), autocomplete and coverage, plus an MCP server for AI agents.

Create a free zipcodestack key and compare both APIs with your own data.

Frequently asked questions

Is zipcodestack cheaper than Zipcodebase?

Per request, yes, on all comparable paid plans: 70,000 requests for $34.99 vs 60,000 for $45, 250,000 for $59.99 vs 200,000 for $75, and 2.5 million for $159.99 vs 1.9 million for $240 (monthly list prices, October 2026).

Which free plan is bigger?

Zipcodebase's free plan has 5,000 searches per month for private use. zipcodestack's free plan has 300 requests per month and allows commercial use.

How hard is migrating from Zipcodebase?

The endpoints map closely: search, distance, radius, match, city and state lookups. Most integrations only need a new base URL, the apikey header and small field-name changes.

Get this data in your app

zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.

300 free requests every month. No credit card required.

{ "results": { "10001": [{ "postal_code": "10001", "country_code": "US", "latitude": 40.7484, "longitude": -73.9967, "city": "New York", "state": "New York", "state_code": "NY", "province": "New York" }] } }

zipcodestack vs Zipcodebase