Mangalpur Birt is a village in Baikunthpur tehsil in district of Gopalganj, Bihar, India. As per the data provided by Census of India in 2011, total population of Mangalpur Birt was 949 which includes 501 males and 448 females. Mangalpur Birt covers 91 ha area. Pincode of Mangalpur Birt is 841409.