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|Elevation||34 m (112 ft)|
|• Official||Maithili, Hindi, Urdu|
|Time zone||IST (UTC+5:30)|
|Lok Sabha constituency||Supaul|
|Vidhan Sabha constituency||Supaul, Pipra, Supaul, Tribeniganj, Chhatapur, nirmali|
Supaul is located at  It has an average elevation of 34 metres (111 feet)..
As of 2011[update] India census, Supaul had population of 2,228,397 of which male and female were 1,157,815 and 1,070,582 respectively. The initial provisional data suggest a density of 919 in 2011 compared to 714 of 2001.
Major Sources of Income
The economy is majorly Agrarian. Supaul region is rich with fertile land, due to the silt of Koshi river repleting the land with useful minerals quite often. Some of the major agricultural produce in Supaul constitutes - paddy, wheat, pulses (moong, arhar, kurthi, khesari etc.), bamboos and mangoes. Animal husbandry is also quite popular with major focus on milch animals such as - buffaloes, cows, goats and pigs. Rearing fishes is also a major source of income for people, owing to the vast number of water bodies in the region.
Apart from agriculture a vast majority of people earn their living by providing government or private services in big cities in other states.
Manufacturing is quite limited with a few examples of plywood and wood pulp industry.
- Falling Rain Genomics, Inc - Supaul
- "Census of India 2001: Data from the 2001 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 2004-06-16. Retrieved 2008-11-01.