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.

Downers Grove, IL

CSAChicago-Naperville MSAChicago-Naperville-Elgin#25/341 Population

Select Your District

Your assigned district depends on your home address within town.

NCES

School Staff — 2025i

NCES

Who teaches and supports students in your school districts. 689 teachers serve across all districts. The median household income here is $115K, providing context for local cost of living.

Teachersi

689

Student:Teacheri

18:1

Avg Teacher Salaryi

$108K

Local Median Incomei

$115K

By District

Downers Grove GSD 58Elementary District · 4,721 students

This district employs 338 teachers with an average salary of $96K. 93.8% returned from the prior year.

Staff Breakdowni

396 total FTE

333 Teachers (84%)

5 Counselors (1%)

16 Social Workers (4%)

9 Psychologists (2%)

3 Nurses (1%)

30 Admin (8%)

Teachers

Headcount

338

333.3 FTE

Student:Teacher

17:1

Avg Salary

$96K

14.5 yrs avg experience

Retention ratei93.8%

Attendance ratei93.8%

Administration

Avg Salary

$132K

Student:Admin

157:1

Principal Turnover

in past 6 years

Support Staff

Counselorsi

1 per 944 students

Nursesi

3.4

1 per 1389 students

Psychologistsi

8.7

1 per 543 students

Social Workersi

15.9

1 per 297 students

Teacher Credentials

Novice teachersi1.7%

Out-of-fieldi0.2%

Provisional licensei0.6%

CHSD 99High School District · 4,598 students

This district employs 351 teachers with an average salary of $119K. 94.5% returned from the prior year.

Staff Breakdowni

422 total FTE

326 Teachers (77%)

20 Counselors (5%)

16 Social Workers (4%)

6 Psychologists (1%)

2 Nurses (0%)

52 Admin (12%)

Teachers

Headcount

351

325.8 FTE

Student:Teacher

19:1

Avg Salary

$119K

17.6 yrs avg experience

Retention ratei94.5%

Attendance ratei94.5%

Administration

Avg Salary

$159K

Student:Admin

89:1

Principal Turnover

in past 6 years

Support Staff

Counselorsi

1 per 230 students

Nursesi

1 per 2299 students

Psychologistsi

1 per 766 students

Social Workersi

1 per 287 students

Teacher Credentials

Novice teachersi2%

Out-of-fieldi4.8%

Provisional licensei0.6%