Siarbhuka is a village in Gaya Town C D Block tehsil in district of Gaya, Bihar, India. As per the data provided by Census of India in 2011, total population of Siarbhuka was 2,875 which includes 1,505 males and 1,370 females. Siarbhuka covers 227 ha area. Pincode of Siarbhuka is 804404.