The student population for the Chillicothe R-II School District fluctuates a bit each year. Superintendent Dr Dan Wiebers says the total student body for day one of the 2022/23 school year is 1,733. The breakdown includes:
Chillicothe Elementary 249
Field School 253
Dewey School 244
Chillicothe Middle School 375
Chillicothe High School 612