Laksham and Chauddagram upazilas on the north, Senbagh and Daganbhuiyan upazilas on the south, Chauddagram upazila on the east, Laksham upazila on the west.

Nangalkot thana was turned into an upazila in 1983. The upazila consists of 11 union parishads, 213 mouzas and 285 villages.

Nangalkot Upazila is located in Comilla District. Upazilla(s)/Thana(s) in Comilla are Barura Upazila, Brahmanpara Upazila, Burichang Upazila, Chandina Upazila, Chauddagram Upazila, Comilla Sadar Upazila, Daudkandi Upazila, Debidwar Upazila, Homna Upazila, Laksham Upazila, Muradnagar Upazila, Nangalkot Upazila.

Brick-built fort at Patoar.