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.

Libertyville, IL

CSAChicago-Naperville MSAChicago-Naperville-Elgin#30/341 Income

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 $166K, providing context for local cost of living.

Student:Teacheri

15.8:1

Avg Teacher Salaryi

$91K

Local Median Incomei

$166K

By District

Hawthorn CCSD 73Elementary District · 3,466 students

Teachers earn an average of $65K. 84.4% returned from the prior year.

Teachers

Student:Teacher

14:1

Avg Salary

$65K

10.5 yrs avg experience

Retention ratei84.4%

Attendance ratei84.4%

Administration

Avg Salary

$126K

Teacher Credentials

Novice teachersi10.5%

Out-of-fieldi0.4%

Provisional licensei2.1%

CHSD 128High School District · 3,154 students

Teachers earn an average of $132K. 95.4% returned from the prior year.

Staff Breakdowni

263 total FTE

248 Teachers (94%)

15 Counselors (6%)

Teachers

Student:Teacher

16:1

Avg Salary

$132K

19.2 yrs avg experience

Retention ratei95.4%

Attendance ratei95.4%

Administration

Avg Salary

$188K

Support Staff

Counselorsi

1 per 210 students

Teacher Credentials

Novice teachersi1.7%

Out-of-fieldi0.5%

Provisional licensei1.5%

Grayslake CHSD 127High School District · 2,479 students

Teachers earn an average of $88K. 89.6% returned from the prior year.

Staff Breakdowni

209 total FTE

200 Teachers (96%)

9 Counselors (4%)

Teachers

Student:Teacher

14:1

Avg Salary

$88K

16 yrs avg experience

Retention ratei89.6%

Attendance ratei89.6%

Administration

Avg Salary

$151K

Support Staff

Counselorsi

9.1

1 per 272 students

Teacher Credentials

Novice teachersi5.9%

Out-of-fieldi3.8%

Provisional licensei1%

Mundelein Cons HSD 120High School District · 2,255 students

Teachers earn an average of $104K. 92.6% returned from the prior year.

Staff Breakdowni

150 total FTE

142 Teachers (95%)

8 Counselors (5%)

Teachers

Student:Teacher

20:1

Avg Salary

$104K

14.9 yrs avg experience

Retention ratei92.6%

Attendance ratei92.6%

Administration

Avg Salary

$152K

Support Staff

Counselorsi

1 per 282 students

Teacher Credentials

Novice teachersi9%

Out-of-fieldi2.7%

Provisional licensei0.7%

Libertyville SD 70Elementary District · 2,160 students

Teachers earn an average of $91K. 96.4% returned from the prior year.

Teachers

Student:Teacher

15:1

Avg Salary

$91K

17 yrs avg experience

Retention ratei96.4%

Attendance ratei96.4%

Administration

Avg Salary

$151K

Teacher Credentials

Novice teachersi1.1%

Out-of-fieldi4.7%

Fremont SD 79Elementary District · 2,060 students

Teachers earn an average of $79K. 89% returned from the prior year.

Staff Breakdowni

143 total FTE

142 Teachers (99%)

1 Counselors (1%)

Teachers

Student:Teacher

16:1

Avg Salary

$79K

14.7 yrs avg experience

Retention ratei89%

Attendance ratei89%

Administration

Avg Salary

$146K

Support Staff

Counselorsi

1 per 2060 students

Teacher Credentials

Novice teachersi5.8%

Provisional licensei1%

Mundelein ESD 75Elementary District · 1,555 students

Teachers earn an average of $64K. 85.6% returned from the prior year.

Staff Breakdowni

121 total FTE

120 Teachers (99%)

1 Counselors (1%)

Teachers

Student:Teacher

17:1

Avg Salary

$64K

12.8 yrs avg experience

Retention ratei85.6%

Attendance ratei85.6%

Administration

Avg Salary

$127K

Support Staff

Counselorsi

1 per 1555 students

Teacher Credentials

Novice teachersi6%

Out-of-fieldi4.5%

Provisional licensei6.3%