Nabiganj upazila on the north, Chunarughat upazila on the south, Sreemangal upazila on the east and Habiganj Sadar upazila on the west.

Bahubal thana, now an upazila, was established in 1921. It consists of 7 union parishads, 145 mouzas, 325 villages.

Bahubal Upazila is located in Habiganj District. Upazilla(s)/Thana(s) in Habiganj are Ajmiriganj Upazila, Baniachang Upazila, Bahubal Upazila, Chunarughat Upazila, Habiganj Sadar Upazila, Lakhai Upazila, Madhabpur Upazila, Nabiganj Upazila.