Meghalaya (state of India) on the north, Sylhet Sadar, Gowainghat and Chhatak upazilas on the south, Gowainghat upazila on the east, Chhatak upazila on the west.

A police outpost was established at Companiganj in 1976 which was upgraded to an upazila in 1983. The upazila consists of three union parishads, 74 mouzas and 131 villages.

Companiganj Upazila Sylhet is located in District. Upazilla(s)/Thana(s) in are .