Belaka Municipality is one of the 8 municipalities in Udayapur District of Koshi Province. As per the 2021 census, the municipality has a total population of 51,043, comprising 24,400 males (47.8%) and 26,643 females (52.2%), with a literacy rate of 77.48%. Spanning 344.73 square kilometers, Belaka Municipality exhibits the population density of 148 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), Belaka has 69 schools. Of these, 17 are private and 51 are public. The breakdown includes 57 pre-schools, 69 basic schools, and 20 secondary schools. Among the secondary schools, 7 offer +2 programs.
Some of the popular schools within the municipal area include Shree Janata Model Secondary School, Koshi Janata Secondary School, Bal Vidhya Mandir English Boarding School, Morning Glory English Boarding School, and Shree Janata Secondary School.