Saraigarh is a village in Saraigarh Bhaptiyahi tehsil in district of Supaul, Bihar, India. As per the data provided by Census of India in 2011, total population of Saraigarh was 10,161 which includes 5,269 males and 4,892 females. Saraigarh covers 1721 ha area. Pincode of Saraigarh is 852105.