Siurajpur is a village in Nautan tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Siurajpur was 12,912 which includes 6,878 males and 6,034 females. Siurajpur covers 509.15 ha area. Pincode of Siurajpur is N/A.