Chandpur Sadar and Bhedarganj upazilas on the north, Hizla upazila on the south, Raipur and Faridganj upazilas on the east, Gosairhat upazila on the west.

Haimchar thana was established in 1977 and was turned into an upazila in 1984. The upazila consists of six union parishads, 28 mouzas and 64 villages.

Haimchar Upazila is located in Chandpur District. Upazilla(s)/Thana(s) in Chandpur are Chandpur Sadar Upazila, Faridganj Upazila, Haimchar Upazila, Hajiganj Upazila, Kachua Upazila, Matlab Upazila, Shahrasti Upazila.