Bogra district on the north, Pabna district on the south, Tangail and Jamalpur districts on the east, Pabna, Natore and Bogra districts on the west.

Sirajganj subdivision was established in 1845 and was included in Pabna district. It was turned into a district in 1984. The district consists of 4 municipalities, 42 wards, 9 upazilas, 117 mahallas, 79 union parishads, 1467 mouzas and 2006 villages.

Belkuchi Upazila, Chauhali Upazila, Kamarkhanda Upazila, Kazipur Upazila, Raiganj Upazila, Shahjadpur Upazila, Sirajganj Sadar Upazila, Tarash Upazila, Ullahpara Upazila