- Enrollment
- 761
- Students per teacher
- 13.6:1
- Resource Index
- 52/100
Elementary school (grades K-5) · Cary, IL
Three Oaks School
Federal NCES profile for Three Oaks School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
2024-25 NCES dataElementary school (grades K-5)NCES 170873000573
👥 S:T ratio 57
🌟 Gifted program 70
📋 Attendance 34
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Three Oaks School earns 53/100 on the Resource Investment Index, with class sizes smaller than 84% of Illinois schools.
- #2 of 3
- elementary schools in Cary · Resource Index
- 53
- Resource Index · Higher
- 10.8:1
- small classes for Illinois
- 443
- students enrolled
Three Oaks School has class sizes smaller than 84% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Three Oaks School ranks #2 of 3 elementary schools in Cary, IL.
School address
CCD year-over-year · 2022-23 → 2023-24
+23 students YoY
Three Oaks School grew from 416 students in 2022-23 to 439 in 2023-24 (+5.5%).
Teacher FTE lost 41.0 → 40.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+23 students YoY 170873000573 · Cary, IL Elementary · SMALL · TRAD
443 enr · 10.8:1 · RII 53
Nearest enrollment peer: Cary Jr High School (761 students)
Three Oaks School grew from 416 students in 2022-23 to 439 in 2023-24 (+5.5%). Teacher FTE lost 41.0 → 40.2 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Three Oaks School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Cary Jr High S
Cary Jr High School
761 students
- Deer Path Elem
Deer Path Elem School
452 students
- This school
Three Oaks School
443 students
- Briargate Elem
Briargate Elem School
400 students
- Oak Knoll Earl
Oak Knoll Early Childhood Center
316 students
What this shows Three Oaks School reports 443 students on the CCD universe file.
How Three Oaks School compares
Three Oaks School is a growing campus on CCD: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.8:1 | ▼ 23% | 14:1 | 15.7:1 |
| Enrollment | 443 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.8:1
Leaner classes than 84% of US schools, among the more generously staffed nationally.
443
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
10.8:1
students per teacher
- 23% below state mean
Top 16% in Illinois - lower ratio than 84% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
26.6%
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
$15,892
per pupil, district-wide
- below Illinois avg of $18,196
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1
in-school suspensions + 1 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 0.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 62.8%
Hispanic or Latino 31.2%
Two or More 3.4%
Asian 1.4%
African American 0.9%
American Indian / Alaska Native 0.5%
Largest group: White at 62.8% of enrollment.
Student-body diversity index 50.7/100
Simpson diversity index - at 50.7, Three Oaks School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
District finance for Cary Ccsd 26 reports $15,892 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Three Oaks School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cary Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Deer Path Elem School | Similar size | No free-lunch data | Higher S:T ratio |
| Briargate Elem School | Similar size | No free-lunch data | Higher S:T ratio |
| Oak Knoll Early Childhood Center | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Three Oaks School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 452
- Students per teacher
- 13.3:1
- Resource Index
- 52/100
- Enrollment
- 400
- Students per teacher
- 15.4:1
- Resource Index
- 56/100
- Enrollment
- 316
- Students per teacher
- 16.6:1
- Resource Index
- 38/100
Similar elementary schools in Cary
2 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~443 students)
Frequently asked questions about Three Oaks School
How many students attend Three Oaks School?
Three Oaks School has 443 students enrolled. It is an elementary school in Cary, IL. CCD year-over-year: 416 (2022-23) → 439 (2023-24), up 23.
What is the student-teacher ratio at Three Oaks School?
The student-teacher ratio at Three Oaks School is 10.8:1, which is 23% lower than the Illinois average of 14:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Three Oaks School?
The largest demographic group at Three Oaks School is White at 62.8% of enrollment, in Cary, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.7/100.
What is the Resource Investment Index for Three Oaks School?
Three Oaks School has a Resource Investment Index of 53/100 (higher 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 Three Oaks School rank among elementary schools in Cary?
By Resource Investment Index, Three Oaks School ranks #2 of 3 elementary schools in Cary, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Cary on the city page.
What other schools are in Cary Ccsd 26?
Besides Three Oaks School, Cary Ccsd 26 also operates Cary Jr High School (761 students), Deer Path Elem School (452 students), and Briargate Elem School (400 students). See the Cary Ccsd 26 district page for the complete list.