Switzerland Postal Code API

About Switzerland Postleitzahl (PLZ) / numero postal d'acheminement (NPA)s

Switzerland uses 4-digit postal codes shared with Liechtenstein. Zurich starts with 80, Bern with 30, Geneva with 12.

Local term: Postleitzahl (PLZ) / numero postal d'acheminement (NPA) | Regex pattern: ^\d{4}$

API Usage Examples

curl -X POST https://postaldatapi.com/api/lookup \
  -H "Content-Type: application/json" \
  -d '{"zipcode": "8001", "country": "CH", "apiKey": "YOUR_API_KEY"}'

from postaldatapi import PostalDataPI

client = PostalDataPI(api_key="YOUR_API_KEY")
result = client.lookup("8001", country="CH")
print(result.place_name, result.latitude, result.longitude)

import { PostalDataPI } from 'postaldatapi';

const client = new PostalDataPI({ apiKey: 'YOUR_API_KEY' });
const result = await client.lookup('8001', { country: 'CH' });
console.log(result.placeName, result.latitude, result.longitude);