Rou Mari Bill is a village in Dhing tehsil in district of Nagaon, Assam, India. As per the data provided by Census of India in 2011, total population of Rou Mari Bill was 4,664 which includes 2,416 males and 2,248 females. Rou Mari Bill covers 361.55 ha area. Pincode of Rou Mari Bill is 782123.