Dewanganj Upazila (Jamalpur district) with an area of 266.59 sq km, is surrounded by Char Rajibpur upazila on the north, Islampur upazila on the south, Baksiganj upazila and Meghalaya (India) on the east,Gaibandah Sadar and Fulchhari upazilas on the west. 

Main rivers are Jamuna, Old Brahmaputra. 

Dewanganj (Town) The town is now a municipality with an area of 4.54 sq km and population 34997; male 49.83%, female 50.17%. It has 9 wards and 43 mahallas. Literacy rate among the town people is 31.4%. 

Administration Dewanganj thana, now an upazila, was established in 1874. The upazila consists of one municipality, 8 union parishads, 47 mouzas and 172 villages. Historical events During the Mughal period two saints, Dewan Shah Jalal and Dewan Shah Jamal, preached Islam in the area. 

Dewanganj is named after these two saints. Bahadurabad Ghat of this upazila was a very important strategic place in the northern sector. The Pak army deployed one-platoon soldiers of the 31st Baluch Regiment, one company Para Military Rangers Forces and about 50 Razakars to keep full control over the Bahadurabad Ghat along with the Jamuna River. On 3 July 1971 a group of 400 freedom fighters attacked the Bahadurabad Ghat under the command of Major Shafayet Jamil. The Pak army was defeated in this three-day battle; with this the freedom fighters were able to disrupt the railway communication berween Jamalpur and Bahadurabad Ghat. Marks of War of Liberation Mass grave 3.

Population 193182; male 50.47%, female 49.53%; Muslim 97.82%, Hindu 2.01%, Buddhist 0.02%, Christian 0.03% and others 0.12%. 

Religious institutions Mosque 322, temple 5. 

Literacy and educational institutions Average literacy 20.8%; male 27.25% and female 14.4%. 

Educational institutions: college 3, secondary school 25, madrasa 33, government primary school 66, non-government primary school 94. 

Cultural organisations Club 61, library 1, cinema hall 2, theatre group 1, literary society 8, women's organisation 1, playground 31. 

Main occupations Agriculture 39.34%, fishing 1.81%, agricultural labourer 28.77%, wage labourer 3.76%, commerce 9.44%, service 5.69% and others 11.19%. 

Land use Total cultivable land 16385.27 hectares, fallow land 2554.03 hectares; single crop 16.67%, double crop 45.86% and treble crop 9.81%; land under irrigation 771.35 hectares. 

Land control Among the peasants 14.04% are landless, 40.96% marginal, 27.82% small, 13.58% intermediate and 3.60% rich; cultivable land per head is 0.18 hectare. 

Value of land The market value of the land of the first grade is Taka 7500 per 0.01 hectare.

Main crops Paddy, jute, sugarcane, mustard seed, wheat, potato, garlic, cabbage, cauliflower, brinjal, varieties of pulse and vegetables. Extinct or nearly extinct crops Ground nut, kaun. 

Main fruits Mango, banana, coconut, watermelon and futi. Fisheries, dairies, poultries Cattle breeding farm 1, hatchery 1. 

Communication facilities Roads: pucca 42 km, semi pucca 20 km, mud road 182 km; railways 9.1 km; waterways 15 nautical mile. 

Traditional transport Palanquin (extinct). Manufactories Sugar mill 1. 

Cottage industries Loom 1400, handicraft 39, blacksmith 72, potteries 11, bamboo and cane work 71, wood work 159, painter 7, jute and cotton work 96 and tailoring 200. 

Hats, bazars and fairs Total number of hats and bazars are 5, most noted of which is Sanandha Bari Hat; fairs 2. 

Main exports Jute, rice, cotton, mustard seed and potato. 

NGO activities Operationally important NGOs are Brac Asa, Gramen bank,Unnayan Sangha and Progress. 

Health centres Upazila health complex 1, family planning centre 8, satellite clinic 2.