- Enrollment
- 725
- Students per teacher
- 14.2:1
- Resource Index
- 35/100
Other / mixed grade configuration · Oak Lawn, IL
Ernest F Kolb Elem School
Federal NCES profile for Ernest F Kolb Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataOther / mixed grade configurationNCES 173369003465
👥 S:T ratio 36
🌟 Gifted program 30
📋 Attendance 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ernest F Kolb Elem School earns 30/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #6 of 7
- schools in Oak Lawn · Resource Index
- 30
- Resource Index · Lower
- 16:1
- large classes for Illinois
- 399
- students enrolled
Ernest F Kolb Elem School has class sizes larger than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Ernest F Kolb Elem School ranks #6 of 7 schools in Oak Lawn, IL.
School address
District: Ridgeland Sd 122 · Illinois
NCES ID 173369003465 Verify on NCES CCD record →
NCES CCD universe card
School universe 173369003465 · Oak Lawn, IL Other · SMALL · TRAD
399 enr · 16:1 · RII 30
Nearest enrollment peer: Simmons Middle School (725 students)
Resource Investment Index #6 of 7 schools in Oak Lawn. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Ernest F Kolb Elem School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Simmons Middle
Simmons Middle School
725 students
- Harnew Elem Sc
Harnew Elem School
512 students
- This school
Ernest F Kolb Elem School
399 students
- George W Lieb
George W Lieb Elem School
399 students
- Columbus Manor
Columbus Manor Elem School
359 students
What this shows Ernest F Kolb Elem School reports 399 students on the CCD universe file.
How Ernest F Kolb Elem School compares
Ernest F Kolb Elem School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16:1 | ▲ 14% | 14:1 | 15.7:1 |
| Enrollment | 399 | top 45% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16:1
Leaner classes than 38% of US schools, a middle-of-the-pack class size.
399
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16:1
students per teacher
- 14% above state mean
Top 79% in Illinois - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
30.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,422
per pupil, district-wide
- below Illinois avg of $18,196
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
12
in-school suspensions + 28 out-of-school
Suspension rate: 3.0 per 100 students. Combined in-school and out-of-school rate: 10.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 55.1%
Hispanic or Latino 26.1%
African American 6.8%
Asian 5.8%
Two or More 5.5%
American Indian / Alaska Native 0.8%
Largest group: White at 55.1% of enrollment.
Student-body diversity index 61.7/100
Simpson diversity index - at 61.7, Ernest F Kolb Elem School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Ridgeland Sd 122, which includes Ernest F Kolb Elem School.
$17,422
Per student
-4%
vs Illinois
Avg $18,196
-1%
vs U.S.
Avg $17,658
Revenue mix
Local 49.1%
State 37.6%
Federal 13.3%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Ernest F Kolb Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Simmons Middle School | Larger | No free-lunch data | Lower S:T ratio |
| Harnew Elem School | Larger | No free-lunch data | Lower S:T ratio |
| George W Lieb Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| Columbus Manor Elem School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Ernest F Kolb Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 512
- Students per teacher
- 9.7:1
- Resource Index
- 36/100
- Enrollment
- 399
- Students per teacher
- 13.3:1
- Resource Index
- 32/100
- Enrollment
- 359
- Students per teacher
- 11.6:1
- Resource Index
- 33/100
Similar other schools in Oak Lawn
6 comparable other schools (grades Mixed) serving the same city.
Harnew Elem School
Standard public school
512 students 9.7:1 students per teacher
J Covington Elem School
Standard public school
470 students 14.2:1 students per teacher
Sward Elem School
Standard public school
457 students 16.3:1 students per teacher
Kolmar Avenue Elem School
Standard public school
391 students 11.2:1 students per teacher
Columbus Manor Elem School
Standard public school
359 students 11.6:1 students per teacher
Lawn Manor School
Standard public school
210 students 10.5:1 students per teacher
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~399 students)
Frequently asked questions about Ernest F Kolb Elem School
How many students attend Ernest F Kolb Elem School?
Ernest F Kolb Elem School has 399 students enrolled. It is a public school in Oak Lawn, IL.
What is the student-teacher ratio at Ernest F Kolb Elem School?
The student-teacher ratio at Ernest F Kolb Elem School is 16:1, which is 14% higher than the Illinois average of 14:1 and 2% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Ernest F Kolb Elem School?
The largest demographic group at Ernest F Kolb Elem School is White at 55.1% of enrollment, in Oak Lawn, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.7/100.
What is the Resource Investment Index for Ernest F Kolb Elem School?
Ernest F Kolb Elem School has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ernest F Kolb Elem School rank among schools in Oak Lawn?
By Resource Investment Index, Ernest F Kolb Elem School ranks #6 of 7 schools in Oak Lawn, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Oak Lawn on the city page.
What other schools are in Ridgeland Sd 122?
Besides Ernest F Kolb Elem School, Ridgeland Sd 122 also operates Simmons Middle School (725 students), Harnew Elem School (512 students), and George W Lieb Elem School (399 students). See the Ridgeland Sd 122 district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.