Chhathar Rural Municipality is one of the 6 municipalities in Tehrathum District of Koshi Province. As per the 2021 census, the rural municipality has a total population of 14,197, comprising 6,931 males (48.8%) and 7,266 females (51.2%), with a literacy rate of 79.08%. Spanning 133.93 square kilometers, Chhathar Rural Municipality exhibits the population density of 106 people per square kilometer. Administratively, it is divided into 6 wards.
According to the latest publicly available report of the Center for Education and Human Resource Development (CEHRD), Chhathar has 40 schools. Of these, 2 are private and 38 are public. The breakdown includes 30 pre-schools, 40 basic schools, and 9 secondary schools. Among the secondary schools, 4 offer +2 programs.
Some of the popular schools within the region include Saraswati Secondary School Hamarjung Terhathum, Bhagawati Secondary School Okhare Tehrathum, Machhindra Secondary School, Nabin Sikshya Sadan Secondary School, and Sharada Secondary School.