Gadhimai Municipality is one of the 18 municipalities in Rautahat District of Madhesh Province. As per the 2021 census, the municipality has a total population of 49,135, comprising 25,049 males (51.0%) and 24,086 females (49.0%), with a literacy rate of 53.25%. Spanning 49.44 square kilometers, Gadhimai Municipality exhibits the population density of 994 people per square kilometer. Administratively, it is divided into 9 wards.
According to the latest publicly available report of the Center for Education and Human Resource Development (CEHRD), Gadhimai has 24 schools. Of these, 2 are private and 22 are public. The breakdown includes 21 pre-schools, 24 basic schools, and 6 secondary schools. Among the secondary schools, 5 offer +2 programs.
Some of the popular schools within the municipal area include Saraswati Secondary School, Shankar Guddar Secondary School, Secondary School Birnagra, Secondary School Dhanadi Dharmapur, and Secondary School Sangrampur.