Ruia is a village in Hat Gamharia tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Ruia was 4,290 which includes 2,156 males and 2,134 females. Ruia covers 1947 ha area. Pincode of Ruia is 833214.