Champa Nagar is a village in Raghopur tehsil in district of Supaul, Bihar, India. As per the data provided by Census of India in 2011, total population of Champa Nagar was 2,640 which includes 1,390 males and 1,250 females. Champa Nagar covers 127 ha area. Pincode of Champa Nagar is N/A.