Boalmari upazila on the northeast, Kashiani upazila on the south, Mohammadpur and Lohagara upazila on the west.

Alfadanga thana, now an Upazila, was established in 1960. The upazila consists of 6 union parishads, mouza 86 and 124 villages.

Alfadanga Upazila is located in Faridpur District. Upazilla(s)/Thana(s) in Faridpur are Alfadanga Upazila, Bhanga Upazila, Boalmari Upazila, Char Bhadrasan Upazila, Faridpur Sadar Upazila, Madhukhali Upazila, Nagarkanda Upazila, Sadarpur Upazila.