Taiwan Postal Code API

About Taiwan postal codes

Taiwan uses 3-digit (district) or 5-digit (full) postal codes managed by Chunghwa Post. The first digit indicates the region: 1 for Taipei, 3 for Taichung, 8 for Kaohsiung. PostalDataPI supports the full 6-digit precision format including village-level codes.

Local term: postal code | Regex pattern: ^\d{6}$

API Usage Examples

curl -X POST https://postaldatapi.com/api/lookup \
  -H "Content-Type: application/json" \
  -d '{"zipcode": "100003", "country": "TW", "apiKey": "YOUR_API_KEY"}'

from postaldatapi import PostalDataPI

client = PostalDataPI(api_key="YOUR_API_KEY")
result = client.lookup("100003", country="TW")
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('100003', { country: 'TW' });
console.log(result.placeName, result.latitude, result.longitude);