Badalgachhi Upazila (Naogaon district) with an area of 213.98 sq km, is surrounded by Dhamoirhat and Joypurhat Sadar upazilas on the north, Naogaon Sadar upazila on the south, Akkelpur on the east, Mahadevpur and Patnitala upazilas on the west. 

Main river is Little Jamuna.

Badalgachhi (Town) consist of 4 mouzas with an area of 3.53 sq km. The town has a population of 3983; male 53.3%, female 46.7%. The density of population is 1128 per sq km. The literacy rate among the town people is 38.7%. It has one dakbungalow.

Administration Badalgachi thana was established in 1807 and was turned into an upazila in 1983. It consists of eight union parisads, 247 mouzas, 235 villages.

Archaeological heritage Buddhist Vihara at Paharpur, Tara Temple and Halud Vihara.

Historical events Many villages of Badalgachhi were set on fire and many people were killed by the Pakistan army during the war of Liberation in 1971. Most affected villages were Kula, Bhandarpur, Mithapur, Balubhara and Mohanpur. Pakistan army killed eleven persons of Mohanpur village in a day.

Marks of War of Liberation Mass grave 3 (Mohanpur, Bhandarpur and Parsombari).

Religious institutions Mosque 235, temple 93, church 2, Hindu shrine 1.

Population 176010; male 51.34%, female 48.66%; Muslim 84.68%, Hindu 12.60%, Tribal 2.56%, Christian 0.10%, Buddhist 0.06%; ethnic nationals include Oraon, Mahali, Santal, Kurmi.

Literacy and educational institutions Average literacy 28.4%; male 35.4%, female 21%. 

Educational institutions: government college 1, non-government college 2, government primary school 76, non-government primary school 41, community school 10, secondary school 28, junior high school 5, madrasa 29.

Cultural organisations Club 56, cinema hall 1, play-ground 31. 

Main occupations Agriculture 49.92%, livestock farming 1.01%, agricultural labourer 27.67%, wage labourer 1.56%, commerce 9.64%, industries 1.34%, service 3.22%, others 5.64%. 

Land use cultivable land 28414 hectares, fallow land 2897 hectares; single crop 68%, double crop 26%, treble crop 6%. 

Land control Among the peasants 18% are medium, 33% marginal and 49% landless. Land under irrigation 45%. 

Value of land The market value of the highest quality of agricultural land is Tk 4500 per 0.01 hectare. 

Main crops Paddy, wheat, potato, mustard seed, sugarcane. Extinct or non extinct crops Til, tishi, maskalai, opium 

Dairies, poultries and fisheries Dairy 4, poultry 12, fishery 23. 

Communication facilities Roads: pucca 17 km, semi pucca 8 km and mud road 150 km. 

Traditional transport Palanquin and horse carriage (extinct). 

Manufactures Boiler 16, ice factory 3, flour mill 1, biscuit factory 3. 

Cottage industries Bamboo work 112, goldsmith 38, potteries 291, wood work 189, welding 13, bidi 78. 

Hats, bazars and fairs Total number of hats and bazars are 13, fair 1; Balubhara, Kola, Parsombari, Mithapur, Paharpur, Enayetpur, Badalgachhi Bhandarpur, Goborchopa, Chanpur, Nazirpur hats are important. 

Main exports Paddy, wheat, mustard seed, potato, bamboo products and potteries. 

NGO activities Operationally important NGOs are, CARE, , Ujjiban, BRAC. ASA, PROSHIKA, 

Health centres Upazila health complex 1, family planning centre 3, union family welfare centre 1.