Bairbana is a village in Singheshwar tehsil in district of Madhepura, Bihar, India. As per the data provided by Census of India in 2011, total population of Bairbana was 4,431 which includes 2,300 males and 2,131 females. Bairbana covers 200 ha area. Pincode of Bairbana is 852128.