Sundarganj Upazila (Gaibandha district) with an area of 426.52 sq km, is surrounded by Pirghacha, Ulipur and Chilmari upazilas on the north, Gaibandha and Sadullapur upazilas on the south, Chilmari andChar rajibpur upazilas on the east, Pirgachha, Mithapukur and Sadullapur upazilas on the west. 

Main rivers are Tista, Bhramaputra and Ghaghat. Noted depressions are Kalsar Beel, Kumlia Beel, Nalbari Beel and Haldi Doba Beel. 

Sundarganj (Town) consists of two mouzas. The town became a municipality in 2003. The area of the town is 5 sq km. It has a population of 9940; male 51.84% and female 48.16%; population density per sq km 1988. Literacy rate among the town people is 34.3%. The town has one dakbungalow.

Administration Sundarganj thana was established in 1875. It became an upazila 1983. It consists of 15 union parishads, 110 mouzas and 178 villages.

Archaeological heritage and relics Remnants of the house of the Bamandanga Zamindar and Dhakuabari Jami Mosque at Dharmapur. 

Marks of War of Liberation Mass grave 1 (eastside of the Upazila Administrative Building).

Population 360676; male 51.17%, female 49.83%; Muslim 89.99%, Hindu 9.30% and others 0.71%. 

Religious institutions Mosque 481, temple 69, sacred place 1.

Literacy and educational institutions Average literacy 24.1%; male 31.9% and female 16.5%. 

Educational institutions: college 12, secondary school 66, madrasa 48, government primary school 140, non-government primary school 79, community school 9, satellite school 37, technical college (proposed). 

Noted educational institutions: Haripur BSM Government Primary School (1814), Khamar Moniram Government Primary School (1910), Belka MC High School (1918), Bamandanga MN High School (1917), Shibram Adarsha Government Primary School.

Locally published newspapers and periodicals Sundarganj Barta (exrinct), Spandan (extinct). 

Cultural organisations Cinema hall 4, club 35, library 5, theatre group 14, children's organisation 1.

Main occupations Agriculture 48.57%, agricultural labourer 29.64%, wage labourer 2.06%, commerce 6.63%, service 2.59%, fishing 1.25%, others 9.26%. 

Land use Total cultivable land 33234.09 hectares, fallow land 404.69 hectares; single crop 12.29%, double crop 74.29% and treble crop land 13.42%; cultivable land under irrigation 70%.

Land control Among the peasants, 38% are landless, 29% small, 23% intermediate and 10% rich; cultivable land per head 0.10 hectare.

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

Main crops Paddy, jute, wheat, ground nut, tobacco, sugarcane, mustard seed, onion and garlic. Extinct or nearly extinct crops Linseed, sesame, kaun and barley Main fruits Mango, jackfruit, litchi, banana.

Fisheries, dairies, poultries Poultry 25, dairy 7, fishery 175, hatchery 1.

Communication facilities Roads: pucca 46 km, semi pucca 3 km and mud road 650 km; railways 8 km; waterways 8 nautical mile.

Traditional transport Palanquin, horse carriage and bullock cart. These means of transport are either extinct or nearly extinct.Manufactories Ice factory 6.

Cottage industries Weaving 15, bamboo work 135, goldsmith 41, blacksmith 95, potteries 15, wood work 155, tailoring 312. 

Hats, bazars and fairs Hats and bazars are 31, most noted of which are Mirganj, Shovaganj, Panchpir and Kathgara; fair 1 (Shovaganj Mela). 

Main exports Jute, onion, garlic. 

NGO activities Operationally important NGOs are BRAC, ASA, CARE, Swabalambi Sangstha, Swanirvar Bangladesh, Muktir Path, Sonar Bangla, Adarsha Janakalyan Uddag. 

Health centres Upazila health complex 1, family planning centre 8, satellite clinic 7 and community clinic 55.