What does the student-to-teacher ratio tell me?

The student-to-teacher ratio is the number of students divided by the number of full-time equivalent (FTE) teachers. Lower ratios generally mean smaller class sizes and more individual attention, though the ratio does not directly equal class size since teachers have planning periods and may teach specialized subjects.

What types of staff are included?

School staff includes classroom teachers, special education teachers, instructional aides, counselors, administrators, librarians, nurses, social workers, psychologists, and support staff. The staffing breakdown shows how the district allocates its workforce across these roles.

Where does school staffing data come from?

Staffing data is reported annually by school districts to the state Board of Education as part of the School Report Card. It includes full-time equivalent counts, teacher qualifications, experience levels, and salary information.

Glen Carbon, IL School Staffing — Teacher Counts & Ratios

Select Your District

Your assigned district depends on your home address within town.

School Staff — 2025i

NCES

Who teaches and supports students in your school districts. The median household income here is $97K, providing context for local cost of living.

Student:Teacheri

19.9:1

Avg Teacher Salaryi

$68K

Local Median Incomei

$97K

By District

Edwardsville CUSD 7Unit District · 7,030 students

Teachers earn an average of $65K. 92.3% returned from the prior year.

Staff Breakdowni

463 total FTE

446 Teachers (96%)

17 Counselors (4%)

Teachers

Student:Teacher

19:1

Avg Salary

$65K

14.1 yrs avg experience

Retention ratei92.3%

Attendance ratei92.3%

Administration

Avg Salary

$103K

Support Staff

Counselorsi

16.9

1 per 416 students

Teacher Credentials

Novice teachersi6%

Out-of-fieldi0.4%

Provisional licensei1.8%

Collinsville CUSD 10Unit District · 5,974 students

Teachers earn an average of $73K. 92.3% returned from the prior year.

Staff Breakdowni

435 total FTE

428 Teachers (98%)

7 Counselors (2%)

Teachers

Student:Teacher

21:1

Avg Salary

$73K

13.7 yrs avg experience

Retention ratei92.3%

Attendance ratei92.3%

Administration

Avg Salary

$117K

Support Staff

Counselorsi

1 per 853 students

Teacher Credentials

Novice teachersi6.8%

Out-of-fieldi4.8%

Provisional licensei0.2%

Triad CUSD 2Unit District · 3,993 students

Teachers earn an average of $68K. 92% returned from the prior year.

Staff Breakdowni

259 total FTE

252 Teachers (97%)

7 Counselors (3%)

Teachers

Student:Teacher

20:1

Avg Salary

$68K

14.8 yrs avg experience

Retention ratei92%

Attendance ratei92%

Administration

Avg Salary

$113K

Support Staff

Counselorsi

6.8

1 per 587 students

Teacher Credentials

Novice teachersi3.9%

Out-of-fieldi4.7%

Provisional licensei1%