Sonpurwa is a village in Majhiaon tehsil in district of Garhwa, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Sonpurwa was 2,726 which includes 1,392 males and 1,334 females. Sonpurwa covers 277.76 ha area. Pincode of Sonpurwa is 822114.