Trishal and Nandail upazilas on the north, Kapasia and Sreepur upazilas on the south, Hossainpur and Pakundia upazilas on the east, Trishal, Bhaluka and Sreepur upazilas on the west.

Gaffargaon thana was established in 1909 and was turned into an upazila in 1982. The upazila consists of 15 union parishads, 202 mouzas and 218 villages.

Gaffargaon Upazila is located in Mymensingh District. Upazilla(s)/Thana(s) in Mymensingh are Bhaluka Upazila, Dhobaura Upazila, Fulbaria Upazila, Gaffargaon Upazila, Gauripur Upazila, Haluaghat Upazila, Ishwarganj Upazila, Muktagachha Upazila, Mymensingh Sadar Upazila, Nandail Upazila, Phulpur Upazila, Trishal Upazila.

Tomb and Dighi of Kalu Shah.