Netrokona and Mymensingh districts on the north, Narsingdi district on the southwest and Brahmanbaria district on the southeast, Sunamganj and Habiganj districts on the east, Gazipur and Mymensingh districts on the west.

Kishoreganj district was established in 1984; earlier it was a subdivision under the Mymensingh district. The subdivision was established in 1860. The district consists of four municipalities, 39 wards, 145 mahallas, 13 upazilas, 105 union parishads, 946 mouzas and 1775 villages.