Zippopotam.us

API

Free Geocoding API for Postal Code Location Data

Overview

Zippopotam.us is a free RESTful geocoding API that retrieves location details from postal codes. Endpoints follow the pattern /{country_code}/{postal_code} (e.g., /us/90210 for Beverly Hills, CA). Responses are in JSON, including data like country name, city, state/province, and coordinates (latitude/longitude where available). It supports over 20 countries including the US, UK, Canada, and Australia. Use cases include address validation, auto-filling location fields in forms, integrating into delivery apps for route planning, and enriching user profiles with geographic data.

Example Integration (JavaScript)

script.js JS


fetch('http://www.zippopotam.us')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON response format
No authentication required
Supports 20+ countries
Simple endpoint structure

Frequently Asked Questions

? Is Zippopotam.us free to use?

Yes, Zippopotam.us is completely free for both personal and commercial use without any restrictions.

? Does it require an API Key?

No, authentication is not needed—you can directly access the endpoints without an API key.

? What is the response format?

All responses are in JSON format, containing location details like city, state, country, and sometimes latitude/longitude coordinates.

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Tool Info

Pricing Free

Category Geocoding

Platform Public API

Pros

⊕ Free for all use cases
⊕ No API key needed
⊕ Fast response times
⊕ Easy to integrate
⊕ Supports multiple countries

Cons

⊖ HTTP-only (no HTTPS encryption)
⊖ Rate limits apply
⊖ No official SLA
⊖ Limited to basic location details
⊖ Partial coverage for some countries