As of the 1991 Bangladsh census Mithapukur has a population of 409915. Males constitute are 51.09% of the population, and females 48.91%. This Upazila's eighteen up population is 207035. Mithapukur has an average literacy rate of 23% (7+ years), and the national average of 32.4% literate.Mithapukur Upazila is a very diverse population area with many minority group Buddhist,Christian with many tribe like Sawthal.Benuban Bihar is very popular temple among the bud dist in Bangladesh. Baldipukur is the place for living many Christian community. A significant portion of indigenous people like Sawthal Tribe are living in Mithapukur from the beginning of settlement people in this area.