According to the
2022 Bangladeshi census, Dashmina Upazila had 32,967 households and a population of 130,402. 9.80% of the population were under 5 years of age. Dashmina had a literacy rate (age 7 and over) of 70.12%: 72.58% for males and 67.93% for females, and a sex ratio of 91.36 males for every 100 females. 23,906 (18.33%) lived in urban areas. According to the
2011 Census of Bangladesh, Dashmina Upazila had 28,490 households and a population of 123,388. 31,102 (25.21%) were under 10 years of age. Dashmina has a literacy rate (age 7 and over) of 48.7%, compared to the national average of 51.8%, and a sex ratio of 1048 females per 1000 males. 19,252 (15.60%) lived in urban areas. According to the
1991 Bangladesh census, Dashmina had a population of 106,539. Males constituted 49.5% of the population, and females 50.5%. The population aged 18 or older was 52,137. Dashmina had an average literacy rate of 29.5% (7+ years), compared to the national average of 32.4%. ==Administration==