San Ranju is a village in Manjhari tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of San Ranju was 1,289 which includes 626 males and 663 females. San Ranju covers 387 ha area. Pincode of San Ranju is 833201.