- Enrollment
- 520
- Students per teacher
- 13:1
- Resource Index
- 42/100
Elementary school (grades K-5) · Oak Forest, IL
Arbor Elementary School
Federal NCES profile for Arbor Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataElementary school (grades K-5)NCES 170393000080
👥 S:T ratio 48
🌟 Gifted program 70
📋 Attendance 51
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arbor Elementary School earns 56/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools.
- #2 of 5
- elementary schools in Oak Forest · Resource Index
- 56
- Resource Index · Higher
- 12.9:1
- students per teacher
- 232
- students enrolled
Arbor Elementary School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Arbor Elementary School ranks #2 of 5 elementary schools in Oak Forest, IL.
School address
District: Arbor Park Sd 145 · Illinois
NCES ID 170393000080 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+28 students YoY
Arbor Elementary School grew from 207 students in 2022-23 to 235 in 2023-24 (+13.5%).
Teacher FTE held 18.0 → 18.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+28 students YoY 170393000080 · Oak Forest, IL Elementary · SMALL · TRAD
232 enr · 12.9:1 · RII 56
Nearest enrollment peer: Arbor Park Middle School (520 students)
Arbor Elementary School grew from 207 students in 2022-23 to 235 in 2023-24 (+13.5%). Teacher FTE held 18.0 → 18.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Arbor Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Arbor Park Mid
Arbor Park Middle School
520 students
- Scarlet Oak El
Scarlet Oak Elementary School
249 students
- This school
Arbor Elementary School
232 students
- Kimberly Heigh 181
Kimberly Heights Elem School
181 students
What this shows Arbor Elementary School reports 232 students on the CCD universe file.
How Arbor Elementary School compares
Arbor Elementary 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 | 12.9:1 | ▼ 8% | 14:1 | 15.7:1 |
| Enrollment | 232 | top 77% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.9:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
232
Bigger than 23% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
12.9:1
students per teacher
- 8% below state mean
Top 41% in Illinois - lower ratio than 59% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
19.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$18,912
per pupil, district-wide
- above Illinois avg of $18,196
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 39.2%
Hispanic or Latino 29.3%
Asian 18.1%
African American 11.6%
Two or More 1.7%
Largest group: White at 39.2% of enrollment.
Student-body diversity index 71.4/100
Simpson diversity index - at 71.4, Arbor Elementary School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
District finance for Arbor Park Sd 145 reports $18,912 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arbor Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arbor Park Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Scarlet Oak Elementary School | Similar size | No free-lunch data | Similar S:T ratio |
| Kimberly Heights Elem School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Arbor Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 249
- Students per teacher
- 13.8:1
- Resource Index
- 57/100
- Enrollment
- 181
- Students per teacher
- 16.5:1
- Resource Index
- 39/100
Similar elementary schools in Oak Forest
4 comparable elementary schools (grades K-5) serving the same city.
Arbor Park Middle School
Standard public school
520 students 13:1 students per teacher
Kerkstra Elem School
Standard public school
407 students 14:1 students per teacher
Lee R Foster Elem School
Standard public school
397 students 15.3:1 students per teacher
Scarlet Oak Elementary School
Standard public school
249 students 13.8:1 students per teacher
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 (~232 students)
Frequently asked questions about Arbor Elementary School
How many students attend Arbor Elementary School?
Arbor Elementary School has 232 students enrolled. It is an elementary school in Oak Forest, IL. CCD year-over-year: 207 (2022-23) → 235 (2023-24), up 28.
What is the student-teacher ratio at Arbor Elementary School?
The student-teacher ratio at Arbor Elementary School is 12.9:1, which is 8% lower than the Illinois average of 14:1 and 18% 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 Arbor Elementary School?
The largest demographic group at Arbor Elementary School is White at 39.2% of enrollment, in Oak Forest, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 71.4/100.
What is the Resource Investment Index for Arbor Elementary School?
Arbor Elementary School has a Resource Investment Index of 56/100 (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 Arbor Elementary School rank among elementary schools in Oak Forest?
By Resource Investment Index, Arbor Elementary School ranks #2 of 5 elementary schools in Oak Forest, 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 Oak Forest on the city page.
What other schools are in Arbor Park Sd 145?
Besides Arbor Elementary School, Arbor Park Sd 145 also operates Arbor Park Middle School (520 students), Scarlet Oak Elementary School (249 students), and Kimberly Heights Elem School (181 students). See the Arbor Park Sd 145 district page for the complete list.