Belsarh is a village in Kumarkhand tehsil in district of Madhepura, Bihar, India. As per the data provided by Census of India in 2011, total population of Belsarh was 13,049 which includes 6,842 males and 6,207 females. Belsarh covers 1240.4 ha area. Pincode of Belsarh is N/A.