Enrollment
288
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Petersburg, IL
Federal NCES profile for Porta Central, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
The verdict
Porta Central earns 35/100 on the Resource Investment Index, with class sizes smaller than 77% of Illinois schools.
Porta Central has class sizes smaller than 77% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Porta Central ranks #3 of 3 public schools in Petersburg, IL.
NCES ID 173141004796 Verify on NCES CCD record →
Enrollment
288
Illinois · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
11.5:1
vs 14:1 Illinois avg
-18% vs state
How Porta Central compares with Illinois and U.S. medians
Smaller classes than state median
11.5:1 - 2.5 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Porta Central is a mid-sized elementary school in Petersburg, Illinois, enrolling 288 students.
Class sizes run a bit leaner than typical: 11.5:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 288 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is predominantly White (92% of enrollment) (diversity index 14/100).
Chronic absenteeism is elevated: 31.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Porta Cusd 202 spends $12,801 per pupil, 25% below the Illinois average, a leaner-resourced district than most.
Porta Cusd 202 also operates Porta High School (411 students) and Petersburg Elem School (335 students) alongside Porta Central.
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
Porta Central on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.5:1 | ▼ 18% | 14:1 | 15.7:1 |
| Enrollment | 288 | top 66% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 92.4% of enrollment.
Simpson diversity index - at 14.3, Porta Central is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Porta Cusd 202, which includes Porta Central.
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 |
|---|---|---|---|
| Porta High School | Larger | No free-lunch data | Similar S:T ratio |
| Petersburg Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Porta Central's own figures; each column derives from NCES Common Core of Data.
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 Porta Central'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.
Porta Central has 288 students enrolled. It is an elementary school in Petersburg, IL.
The student-teacher ratio at Porta Central is 11.5:1, which is 18% lower than the Illinois average of 14:1 and 27% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Porta Central is White at 92.4% of enrollment, in Petersburg, IL.
Porta Central has a Resource Investment Index of 35/100 (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, Porta Central ranks #3 of 3 public schools in Petersburg, 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 Petersburg on the city page.
Porta Central earns 35/100 on the Resource Investment Index, with class sizes smaller than 77% 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 Porta Central, Porta Cusd 202 also operates Porta High School (411 students) and Petersburg Elem School (335 students). See the Porta Cusd 202 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, or report a data error. Data current as of June 2026.
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PlainSchools, “Porta Central, Petersburg IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/porta-central-il/
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