Harinagar Rural Municipality is one of the 12 municipalities in Sunsari District of Koshi Province. As per the 2021 census, the rural municipality has a total population of 49,845, comprising 24,567 males (49.3%) and 25,278 females (50.7%), with a literacy rate of 70.35%. Spanning 52.29 square kilometers, Harinagar Rural Municipality exhibits the population density of 953 people per square kilometer. Administratively, it is divided into 7 wards.
According to the latest publicly available report of the Center for Education and Human Resource Development (CEHRD), Harinagar has 56 schools. Of these, 14 are private and 20 are public. The breakdown includes 45 pre-schools, 56 basic schools, and 11 secondary schools. Among the secondary schools, 5 offer +2 programs.
Some of the popular schools within the region include Hilal Public Secondary School, Harinagara Secondary School Sunsari, Jamiatul Muslimat Madrasa, Balkrishna Secondary School, and Bidyapati Academy.