Purba Siur is a village in Sainthia tehsil in district of Birbhum, West Bengal, India. As per the data provided by Census of India in 2011, total population of Purba Siur was 1,477 which includes 739 males and 738 females. Purba Siur covers 108.19 ha area. Pincode of Purba Siur is 731201.