IllinoisSchoolsChester High School

Chester High School

PublicRegular
Chester, Illinois · Chester CUSD 139
Teachers22.0FTE
Ratio15.0:1students per teacher
Students331enrolled
SCHOOL SNAPSHOT
Students331
Grade Span9–12
Student:Teacher15.0:1
Free/Reduced Lunch40%
Title INo
SectorPublic
Pupil : Teacher Ratio
16.0:1
(2024)
6.7%vs prior yrUS avg 15.4:1
Teacher FTE
21
(2024)
4.5%vs prior yr
Enrollment
335
(2024)
1.2%vs prior yr
Years of Data
5
2020–2024

Pupil : Teacher Ratio — 5-Year Trend

13.2:113.8:114.4:115.0:115.6:116.2:12020202120222023202413.4:113.5:115.0:116.0:115.4:115.4:115.4:115.4:115.4:1Chester High SchoolUS public-school avg

Enrollment & Teacher FTE

3203293383483573662122232324252020202120222023202436333632333133525242221EnrollmentTeacher FTE

Year-by-year workforce

Metric20202021202220232024Nat Avg
Enrollment363336323331335
Teacher FTE25242221
Pupil : Teacher ratio13.4:113.5:115.0:116.0:115.4:1

What These Numbers Mean

Teacher FTE

Full-Time Equivalent counts part-time teachers proportionally. One full-time teacher = 1.0 FTE; two half-time teachers also = 1.0 FTE. This is the standard federal reporting unit.

Pupil : Teacher ratio

NCES-reported ratio divides total enrollment by teacher FTE. It is NOT the same as average class size — schools with specialists, coaches, and resource teachers will show lower ratios than typical class sizes.

How to read the trend

A falling pupil:teacher ratio (line going down) means more staffing per student — generally a positive signal. A rising line can indicate budget pressure or fast enrollment growth outpacing hiring. Always compare to the US average (dashed grey).

Historical data spans 20202024 from NCES CCD.