According to the 2011 census Bahraich district has a population of 3,487,731,[1] This gives it a ranking of 89th in India (out of a total of 640).

[1] The district has a population density of 706 inhabitants per square kilometre (1,830/sq mi).

[1] Bahraich has a sex ratio of 891 females for every 1000 males, and a literacy rate of 49.32%.

[1] Bahraich is a category "A" district i.e. having socio-economic and basic amenities parameters below the national average.

[3] At the time of the 2011 Census of India, 89.36% of the population in the district spoke Hindi, 7.02% Urdu, 1.82% Awadhi and 1.49% Bhojpuri as their first language.