Laksham upazila on the north, Noakhali Sadar (old name Sudharam) upazila on the south, Senbagh upazila on the east and Lakshmipur Sadar and Chatkhil upazilas on the west.

Begumganj thana, now an upazila, was established in 1892. It consists of 29 union parishads, 334 mouzas and 343 villages.

Begumganj Upazila is located in Noakhali District. Upazilla(s)/Thana(s) in Noakhali are Begumganj Upazila, Chatkhil Upazila, Companiganj Upazila, Hatiya Upazila, Noakhali Sadar Upazila, Senbagh Upazila.

Bajra Shahi Jami Mosque (1153 AH).