Bahilwara Rupnath is a village in Saraiya tehsil in district of Muzaffarpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Bahilwara Rupnath was 13,356 which includes 7,072 males and 6,284 females. Bahilwara Rupnath covers 995.73 ha area. Pincode of Bahilwara Rupnath is 843126.