Rangamati Sadar Upazila (Rangamati district) with an area of 546.49 sq km, is surrounded by Nanirchhar upazila on the north, Kaptai and Belaichhari upazilas on the south,Barkal and Juraichhari upazilas on the east and Kawkhali upazila (Rangamati). 

Kaptai Lake took the one-third area of the upazila.

Rangamati (Town) a municipal town, consists of 9 wards and 35 mahallas. The area of the town is 64.75 sq km. The town has a population of 65294; male 57.68%, female 42.32%. Density of population is 1008 per sq km. Literacy rate among the town people is 60.8%. The town has one dakbungalow.

Administration Rangamati thana was turned into an upazila in 1983. It consists of 9 union parishads, 45 mouzas and 171 villages.

Population 76732; male 55.79%, female 44.21%; Muslim 37.80%, Hindu 12.27%, Buddhist 49.25%, and others 0.68%. 

Literacy and educational institutions Average literacy 48.4%; male 57.5% and female 36.4%. 

Educational institutions: college 6, high school 5, junior high school 6, government primary school 51, non-government primary school 36, madrasa 42, technical institution 1, teacher's training centre 1, community school 3.

Religious institutions Mosque 3, temple 13, church 2, pagoda 40, sacred place 1, tomb 1, ashram 3.

Cultural organisation Club 29, public library 1, cinema hall 1officers club 2, women's organisation 16, shilpakala academy 1, playground 7. 

Main occupations Agriculture 23.23%, agricultural labourer 5.4%, wage labourer 6.91%, commerce 16.64%, service 25.81%, fishing 3.19%, transport 2.08%, forestry 1.92% and others 14.82%. 

Land use Cultivable land 4636.58 hectares, fallow land 2257.39 hectares; single crop land 63%, double crop 26% and treble crop land 11%. 

Land control Among the peasants 27% are landless, 36% small, 28% intermediate and 9% rich. 

Value of land Market price of cultivable land is Tk. 3000 to 5000 per 0.01 hectare. 

Main crops Paddy, corn, potato, cotton, tobacco, sugarcane, pulse. Extinct crops Mustard seed and kaun. 

Main fruits Mango, jackfruit, banana, pineapple, litchi, papaya. 

Fisheries, dairies and poultries Fishery 31, poultry 34 and dairy 6. 

Communication facilities Roads: pucca 75 km, semi pucca 10 km and mud road 242 km; 108 nautical mile. 

Cottage industries Weaving 26, goldsmith 35, blacksmith 12, wood work 117, welding 3. 

Hats and bazaars Hats and bazaars are 12; most noted of which is Mainimukh Bazar. 

Main exports Timber, jackfruit, and pineapple. Health centres Upazila health complex 1, family planning centre 6.