Baliadangi Upazila (Thakurgaon district) with an area of 284.12 sq km, is surrounded by West Bengal of India and Atwari upazila on the north, Ranisankail upazila on the south, Thakurgaon Sadar upazila on the east, West Bengal of India on the west. 

Rivers Tirnai, Kulik and Nagar are almost silted. 

Baliadangi (Town) consists of two mouzas. It has an area of 17.72 sq km. The town has a population of 12015; male 51.5%, female 48.5%; population density per sq km 678. Literacy rate among the town people is 26.5%. The town has an auditorium. 

Administration Baliadangi thana, now an upazila, was established in 1806. It consists of 8 union parishads, 78 mouzas and 78 villages.

Archaeological heritage and relics Three-domed Shahi Mosque at Sangaon (Mughal period), three-domed Fatehpur Mosque (Mughal period), Shiva Mandir at Harinmari Hat. 

Historical events During the Tebhaga Movement many people were killed and many wounded at village Uttar Paria when the British indiscriminately fired on them. During the War of Liberation the Pak army brutally killed 18 persons including Akbar Ali at village Belcha-Zhikra while resisting the Pak army.

Marks of the War of Liberation Mass killing site 1 (Kushaldanga Hat).

Population 147163; male 51.32%, female 48.68%; Muslim 78.50%, Hindu 20.63%, others 0.87%; ethnic nationals: Santal 90 families.

Religious institutions Mosque 300, temple 24, tomb 1, church 11. 

Literacy and educational institutions Average literacy 23.8%; male 34.7%, female 12.3%. 

Educational institutions: college 2, high school 29, government primary school 60, non-government primary school 63. 

Noted old educational institutions: Lahiri High School (1932), Charta High School (1928).

Cultural organisations Club 34, cinema hall 2, theatre group 3, opera party 1, playground 32. 

Main occupations Agriculture 61.85%, agricultural labourer 24.77%, wage labourer 2.4%, commerce 4.22%, service 1.85%, others 4.91%.

Land use Total cultivable land 21745.16 hectares; fallow land 6905 hectares; single crop 31%, double crop 55%, treble crop 14%; land under irrigation 45%.

Land control Among the peasants 3.5% are landless, 15% marginal, 13% small, 64.5% intermediate and 4% rich; cultivable land per head 0.15 hectare.

Value of land The market value of the land of the first grade is approximately Tk. 4000 per 0.01 hectare.

Main crops Paddy, wheat, potato, sugarcane, brinjal.Extinct or nearly extinct crops Jute, kaun, pulses, aus paddy.

Main fruits Mango, jackfruit, black berry, papaya, watermelon, banana.

Communication facilities Roads: pucca 19 km and mud road 279 km. 

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

Manufactories Rice mill, flour mill, ice factory, saw mill, welding. 

Cottage industries Mat works 51, bamboo work 8, jute goods 48, goldsmith 11, blacksmith 8, potteries 22, tailoring 111. 

Hats, bazars and fairs Total number of hats and bazars are 29, the most noted of which are Lahri, Kalomegh and Baliadangi; fair 1, Adhardighi Nababarsha (new year's) Mela. 

Main exports Mango, watermelon, potato, bamboo and jute goods. 

NGO activities Operationally important NGOs are BRAC, RDRS, Grameen Bank, CARE, Hudson, SERF and Uttara Development. 

Health centres Upazila health complex 1, union family welfare centre 5, leprosy clinic 1.