According to the
2022 Bangladeshi census, Demra Thana had 69,569 households and a population of 278,836. 8.55% of the population were under 5 years of age. Demra had a literacy rate (age 7 and over) of 85.77%: 87.39% for males and 83.98% for females, and a sex ratio of 110.60 males for every 100 females. According to the
2011 Census of Bangladesh, Demra Thana had 51,645 households with average household size of 4.23 and a population of 226,679. Males constituted 53.73% (121,805) of the population while females 46.27% (104,874). Demra Thana had a literacy rate (age 7 and over) of 73.1%, compared to the national average of 51.8%, and a sex ratio of 116.There were 21 floating people in this jurisdiction. The religious breakdown was
Muslim 97.39% (220,753),
Hindu 2.58% (5,838), Christian 0.02% (41),
Buddhist 0.01% (34), and others 0.01% (13). The ethnic minority people living there were 87 persons in total. == Parliament's constituency ==