Enrollment
288
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Rochester, IL
Federal NCES profile for Rochester Jr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Rochester Jr High School earns 38/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools.
Rochester Jr High School has class sizes larger than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Rochester Jr High School ranks #5 of 5 public schools in Rochester, IL.
NCES ID 173432003519 Verify on NCES CCD record →
Enrollment
288
Illinois · 2024-25 NCES data
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
16:1
vs 14:1 Illinois avg
+14% vs state
How Rochester Jr High School compares with Illinois and U.S. medians
Slightly above state median
16:1 - 2.0 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Rochester Jr High School is a mid-sized middle school in Rochester, Illinois, enrolling 288 students.
Class loads run somewhat heavier than typical: 16:1 puts it in the larger 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 (88% of enrollment) (diversity index 23/100).
Counselor coverage runs a bit thin, about 288 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 21.9% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Rochester Cusd 3a spends $12,258 per pupil, 28% below the Illinois average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Rochester Cusd 3a also operates Rochester High School (692 students) and Rochester Elem Ec-1 Sch (402 students) alongside Rochester Jr High 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
Rochester Jr High 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 | 16:1 | ▲ 14% | 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 87.5% of enrollment.
Simpson diversity index - at 23.0, Rochester Jr High School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Rochester Cusd 3a, which includes Rochester Jr High 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 |
|---|---|---|---|
| Rochester High School | Larger | No free-lunch data | Similar S:T ratio |
| Rochester Elem Ec-1 Sch | Larger | No free-lunch data | Higher S:T ratio |
| Rochester Intermediate School | Larger | No free-lunch data | Similar S:T ratio |
| Rochester Elem 2-3 | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Rochester Jr High School'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 Rochester Jr High 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.
Rochester Jr High School has 288 students enrolled. It is a middle school in Rochester, IL.
The student-teacher ratio at Rochester Jr High School is 16:1, which is 14% higher than the Illinois average of 14:1 and 2% higher than the national average of 15.7:1.
The largest demographic group at Rochester Jr High School is White at 87.5% of enrollment, in Rochester, IL.
Rochester Jr High School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Rochester Jr High School ranks #5 of 5 public schools in Rochester, 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 Rochester on the city page.
Rochester Jr High School earns 38/100 on the Resource Investment Index, with class sizes larger than 79% 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 Rochester Jr High School, Rochester Cusd 3a also operates Rochester High School (692 students), Rochester Elem Ec-1 Sch (402 students), and Rochester Intermediate School (394 students). See the Rochester Cusd 3a 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, “Rochester Jr High School, Rochester 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/rochester-jr-high-school-il
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