As of the 2011 Census of Bangladesh, Dighalia upazila had 26,797 households and a population of 115,585. 23,352 (20.20%) were under 10 years of age. Dighalia had an average literacy rate of 54.28%, compared to the national average of 51.8%, and a sex ratio of 1005 females per 1000 males. The entire population was rural.[6][7]
According to the 1991 Bangladesh census, Dighalia had a population of 107840. Males constitute 53% of the population, and females 47%. The population aged 18 or over was 56,104. Dighalia has an average literacy rate of 39.4% (7+ years), compared to the national average of 32.4%.[8]
^"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.