Ahirpurwa is a village in Nagaruntari tehsil in district of Garhwa, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Ahirpurwa was 1,866 which includes 978 males and 888 females. Ahirpurwa covers 109.32 ha area. Pincode of Ahirpurwa is 822121.