Enrollment
337
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Peoria, IL
Federal NCES profile for Charter Oak Primary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Charter Oak Primary School earns 43/100 on the Resource Investment Index, with class sizes larger than 72% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
Charter Oak Primary School has class sizes larger than 72% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Charter Oak Primary School ranks #5 of 21 elementary schools in Peoria, IL.
NCES ID 173123004422 Verify on NCES CCD record →
Enrollment
337
Illinois · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
15.3:1
vs 14:1 Illinois avg
+9% vs state
How Charter Oak Primary School compares with Illinois and U.S. medians
Slightly above state median
15.3:1 - 1.3 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Charter Oak Primary School is neither an extreme outlier in enrollment nor in student-teacher ratio among Illinois schools. Its profile therefore turns on the other dimensions rather than on scale alone: economic need, counselor coverage, program access, attendance, and district finance. This middle placement is useful because it prevents the campus from being mislabeled as unusually large, small, crowded, or teacher-dense when the federal comparison does not support that claim.
Charter Oak Primary School's available federal support indicators do not reveal an extreme in advanced-course access, specialist staffing, chronic absence, or IDEA enrollment. The most responsible reading is therefore component by component rather than a sweeping verdict: current counseling availability, health support, program schedules, and attendance policy still warrant direct confirmation. Missing or middle-range federal fields are not evidence that services are either strong or weak.
Charter Oak Primary School is a mid-sized elementary school in Peoria, Illinois, enrolling 337 students.
Class loads run somewhat heavier than typical: 15.3:1 puts it in the larger third of Illinois schools by student-teacher ratio.
With 337 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by African American (46%) and White (28%), more mixed than most schools in the state (diversity index 68/100).
16.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Its district draws 17.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Peoria's elementary schools, it stands alongside Lincoln School (823 students): Charter Oak Primary School is smaller than that campus by headcount and runs leaner classes (15.3:1 vs 16.8:1).
Peoria Sd 150 also operates Richwoods High School (1,685 students) and Peoria High School (1,541 students) alongside Charter Oak Primary 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
Charter Oak Primary 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 | 15.3:1 | ▲ 9% | 14:1 | 15.7:1 |
| Enrollment | 337 | top 56% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: African American at 45.7% of enrollment.
Simpson diversity index - at 67.8, Charter Oak Primary School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Peoria Sd 150, which includes Charter Oak Primary School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Richwoods High School | Larger | No free-lunch data | Higher S:T ratio |
| Peoria High School | Larger | No free-lunch data | Higher S:T ratio |
| Lincoln School | Larger | No free-lunch data | Higher S:T ratio |
| Glen Oak Comm Learning Cntr | Larger | No free-lunch data | Higher S:T ratio |
| Manual High School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Charter Oak Primary School's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Charter Oak Primary 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.
Charter Oak Primary School has 337 students enrolled. It is an elementary school in Peoria, IL.
The student-teacher ratio at Charter Oak Primary School is 15.3:1, which is 9% higher than the Illinois average of 14:1 and 3% lower than the national average of 15.7:1.
The largest demographic group at Charter Oak Primary School is African American at 45.7% of enrollment, in Peoria, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.8/100.
Charter Oak Primary School has a Resource Investment Index of 43/100 (typical 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).
By Resource Investment Index, Charter Oak Primary School ranks #5 of 21 elementary schools in Peoria, 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 Peoria on the city page.
Besides Charter Oak Primary School, Peoria Sd 150 also operates Richwoods High School (1,685 students), Peoria High School (1,541 students), and Lincoln School (823 students). See the Peoria Sd 150 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.
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PlainSchools, “Charter Oak Primary School, Peoria IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of August 2026. https://plainschools.com/schools/charter-oak-primary-school-il
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