Sehangaon is a village in Kochadhamin tehsil in district of Kishanganj, Bihar, India. As per the data provided by Census of India in 2011, total population of Sehangaon was 2,536 which includes 1,312 males and 1,224 females. Sehangaon covers 206.02 ha area. Pincode of Sehangaon is 855115.