Bochaganj and Kaharole upazilas on the north, Indian borders on the south, south-west and north-west, Dinajpur Sadar upazila and punarbhaba river on the east.

Biral thana was established in 1915 and was turned into an upazila in 1984. It consists of 10 union parishads, 241 mouzas and 235 villages.

Biral Upazila is located in Dinajpur District. Upazilla(s)/Thana(s) in Dinajpur are Biral Upazila, Birampur Upazila, Birganj Upazila, Bochaganj Upazila, Chirirbandar Upazila, Dinajpur Sadar Upazila, Ghoraghat Upazila, Hakimpur Upazila, Kaharole Upazila, Khansama Upazila, Nawabganj Upazila, Parbatipur Upazila, Phulbari Upazila.