Sirbinja is a village in Kumardungi tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Sirbinja was 861 which includes 299 males and 562 females. Sirbinja covers 400 ha area. Pincode of Sirbinja is 833214.