Enrollment
164
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Mokena, IL
Federal NCES profile for Arbury Hills Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Arbury Hills Elem School earns 48/100 on the Resource Investment Index, with class sizes smaller than 89% of Illinois schools.
Arbury Hills Elem School has class sizes smaller than 89% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Arbury Hills Elem School ranks #3 of 4 public schools in Mokena, IL.
NCES ID 173822003910 Verify on NCES CCD record →
Enrollment
164
Illinois · 2024-25 NCES data
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
10.3:1
vs 14:1 Illinois avg
-26% vs state
How Arbury Hills Elem School compares with Illinois and U.S. medians
Smaller classes than state median
10.3:1 - 3.7 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Arbury Hills Elem School is a small elementary school in Mokena, Illinois, enrolling 164 students.
Classes run notably small here: at 10.3:1, Arbury Hills Elem School is leaner than roughly 89% of Illinois schools and 26% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 164 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Attendance runs somewhat below the norm, with 18.3% of students chronically absent per the 2021-22 civil-rights collection.
Among Mokena's elementary schools, it stands alongside Mokena Intermediate School (346 students): Arbury Hills Elem School is smaller than that campus by headcount and runs leaner classes (10.3:1 vs 14.2:1).
Summit Hill Sd 161 also operates Dr Julian Rogus School (653 students) and Summit Hill Junior High School (566 students) alongside Arbury Hills Elem School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Arbury Hills 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 | 10.3:1 | ▼ 26% | 14:1 | 15.7:1 |
| Enrollment | 164 | top 87% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
District-wide per-pupil expenditure for Summit Hill Sd 161, which includes Arbury Hills Elem School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dr Julian Rogus School | Larger | No free-lunch data | Higher S:T ratio |
| Summit Hill Junior High School | Larger | No free-lunch data | Higher S:T ratio |
| Walker Intermediate School | Larger | No free-lunch data | Similar S:T ratio |
| Indian Trail Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Frankfort Square Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Arbury Hills Elem School's own figures; each column derives from NCES Common Core of Data.
1 comparable elementary schools (grades K-5) serving the same city.
Next steps
Verify locally before acting on Arbury Hills Elem School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Arbury Hills Elem School has 164 students enrolled. It is an elementary school in Mokena, IL.
The student-teacher ratio at Arbury Hills Elem School is 10.3:1, which is 26% lower than the Illinois average of 14:1 and 34% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
Arbury Hills Elem School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Arbury Hills Elem School ranks #3 of 4 public schools in Mokena, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mokena on the city page.
Arbury Hills Elem School earns 48/100 on the Resource Investment Index, with class sizes smaller than 89% of Illinois schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Arbury Hills Elem School, Summit Hill Sd 161 also operates Dr Julian Rogus School (653 students), Summit Hill Junior High School (566 students), and Walker Intermediate School (554 students). See the Summit Hill Sd 161 district page for the complete list.