West Bengal of India on the north and west, Porsha upazila on the south, PatniTala upazila on the east.

Sapahar thana, now an upazila, was established in 1980. It consists of 6 union parishads 151 mouzas and 228 villages.

Sapahar Upazila is located in Naogaon District. Upazilla(s)/Thana(s) in Naogaon are Atrai Upazila, Badalgachhi Upazila, Dhamoirhat Upazila, Mahadevpur Upazila, Manda Upazila, Naogaon Sadar Upazila, Niamatpur Upazila, Patnitala Upazila, Porsha Upazila, Raninagar Upazila, Sapahar Upazila.