Rajgaon is a village in Pirpainti tehsil in district of Bhagalpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Rajgaon was 4,746 which includes 2,595 males and 2,151 females. Rajgaon covers 339 ha area. Pincode of Rajgaon is 813209.