Kalkini upazila on the north, Wazirpur upazila on the south, Babuganj, Muladi and Kalkini upazilas on the east, Agailjhara upazila on the west.

Gournadi thana was turned into an upazila in 1983. It consists of one municipality, 7 union parishads, 122 mouzas and 124 villages.

Gournadi Upazila is located in Barisal District. Upazilla(s)/Thana(s) in Barisal are Agailjhara Upazila, Babuganj Upazila, Bakerganj Upazila, Banaripara Upazila, Barisal Sadar Upazila, Gournadi Upazila, Hizla Upazila, Mehendiganj Upazila, Muladi Upazila, Wazirpur Upazila.

Single domed ancient mosque, known as Allahr Masjid at Kasba.