According to the 2011 Census of Bangladesh, Debiganj Upazila had 52,411 households and a population of 224,709. 55,235 (24.58%) were under 10 years of age. Debiganj had a literacy rate (age 7 and over) of 47.69%, compared to the national average of 51.8%, and a sex ratio of 986 females per 1000 males. 15,301 (6.81%) lived in urban areas.[6][7]
As of the 1991 Bangladesh census, Debiganj has a population of 159902. Males constitute 51.02% of the population, and females 48.98%. This Upazila's eighteen up population is 77660. Debiganj has an average literacy rate of 24.8% (7+ years), and the national average of 32.4% literate.[8]
Debiganj Thana was formed in 1928 and it was turned into an upazila on 28 March 1983.[4]
The Upazila is divided into ten union parishads: Chengthi Hazradanga, Chilahati, Dandopal, Debiduba, Debiganj, Pamuli, Shaldanga, Sonahar Mollikadaha, Sundardighi, and Tepriganj. The union parishads are subdivided into 108 mauzas and 101 villages.[6]
^"Bangladesh Postal Code". Dhaka: Bangladesh Postal Department under the Department of Posts and Telecommunications of the Ministry of Posts, Telecommunications and Information Technology of the People's Republic of Bangladesh. 21 October 2024.