Upazilas connect districts with unions in Bangladesh. This level improves postal code lookup accuracy for shipping, address validation, and local delivery planning.
Select an area to explore postal codes.
Developer API
Free JSON for Khulna Sadar.
Requests need a free API key.
https://api.listpostcode.com/v1/countries/BD/resolve?path=/khulna-division/khulna/khulna-sadarcurl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/BD/resolve?path=/khulna-division/khulna/khulna-sadar"Upazilas connect districts with unions in Bangladesh. This level improves postal code lookup accuracy for shipping, address validation, and local delivery planning.
Select an area to explore postal codes.
Developer API
Free JSON for Khulna Sadar.
Requests need a free API key.
https://api.listpostcode.com/v1/countries/BD/resolve?path=/khulna-division/khulna/khulna-sadarcurl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/BD/resolve?path=/khulna-division/khulna/khulna-sadar"