Postal Zip Codes (postcode) for Nilphamari District Posted on December 4, 2013 by infodesk Postal Zip Codes (postcode) for Nilphamari District Thana/Upazila within Nilphamari District are: Dimla, Domar, Jaldhaka, Kishoriganj, Nilphamari Sadar. The following table contains post codes of various sub post office in Nilphamari district. Thana Sub Office Post Code Dimla Dimla 5350 Ghaga Kharibari 5351 Domar Chilahati 5341 Domar 5340 Jaldhaka Jaldhaka 5330 Kishoriganj Kishoriganj 5320 Nilphamari Sadar Nilphamari Sadar 5300 Nilphamari Sugar Mil 5301 Syedpur Syedpur 5310 Syedpur Upashahar 5311