Kallangaon is a village in Balrampur tehsil in district of Katihar, Bihar, India. As per the data provided by Census of India in 2011, total population of Kallangaon was 2,147 which includes 1,077 males and 1,070 females. Kallangaon covers 107.06 ha area. Pincode of Kallangaon is N/A.