Somgarh is a village in Narkatiaganj tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Somgarh was 4,273 which includes 2,216 males and 2,057 females. Somgarh covers 415.2 ha area. Pincode of Somgarh is N/A.