Balgangwa is a village in Sidhaw tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Balgangwa was 3,800 which includes 1,957 males and 1,843 females. Balgangwa covers 1388.4 ha area. Pincode of Balgangwa is N/A.