Rajaun Kalan is a village in Pathargama tehsil in district of Godda, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Rajaun Kalan was 1,133 which includes 593 males and 540 females. Rajaun Kalan covers 211 ha area. Pincode of Rajaun Kalan is 814133.