Chaudandigadhi 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 53,631, comprising 25,157 males (46.9%) and 28,474 females (53.1%), with a literacy rate of 77.7%. Spanning 283.78 square kilometers, Chaudandigadhi Municipality exhibits the population density of 189 people per square kilometer. Administratively, it is divided into 10 wards.
According to the latest publicly available report of the Center for Education and Human Resource Development (CEHRD), Chaudandigadhi has 66 schools. Of these, 21 are private and 45 are public. The breakdown includes 57 pre-schools, 64 basic schools, and 30 secondary schools. Among the secondary schools, 8 offer +2 programs.
Some of the popular schools within the municipal area include Jyoti Secondary School Udayapur, Janta Secondary School, Sagarmatha Secondary English Boarding School, Puma English Boarding Secondary School, and Shree Secondary School Sibai Udayapur.