Ramnagar Rural Municipality is situated at south-west part of Sarlahi district, Province number two. This Rural Municipality was established in 2073 B.S. by combining then Khaurawa, Ramnagar, Bahuarwa, Sisout and Gadhahiya Village Development Committees. This local level unit is surrounded by Rautahat district from west, Godaita Municipality from east, Dhankaul Rural Municipality from north and Balara Municipality from south. This local unit is divided into seven wards.

As per the census 2011, total population of this Rural Municipality is 28,727. Population of male is 14,922 and female is 13,805. Ward number one is most populated ward. It covers total area of 26.44 kilometer square. This area is connected by road network and most of the people have access to electricity. Maithali is major language spoken. Most of the people are involved in farming. Hinduism is major religion followed by the people. Mahadev temple and Ramjanaki temple are some religious places. Gadhimai Exhibition which is conducted in every 5 years is major identity of this local unit.

Mr. Krishna Prasad Varma is Chairperson and Ms. Nitu Devi Yadav is Vice-chairperson of this Rural Municipality. Ramnagar village is center of this local unit. Total number of employees working under this local unit is 20.