Enrollment
267
Wisconsin · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 550702001698 Charter school
Rock River Charter School — Janesville, WI
Federal NCES profile for Rock River Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 17/100.
👥 Class size 34
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 3
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Janesville School District · Wisconsin
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 15.1:1 Wisconsin avg
+10% vs state
Free-lunch eligible
75.9%
vs 38.5% Wisconsin avg
+97% vs state
Student-teacher ratio in context
How Rock River Charter School compares with Wisconsin and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Rock River Charter School reports 267 enrolled students to the National Center for Education Statistics (NCES) alongside 15.0 full-time-equivalent teachers, producing a 16.6:1 student-teacher ratio. That figure sits 10% above the Wisconsin state mean of 15.1:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 4% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 75.9% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 97% above the Wisconsin average and 47% above the national baseline. Counselor coverage works out to roughly 534 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 38.6% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Janesville School District spends $15,994 per pupil district-wide, below the Wisconsin average of $18,610 and below the national average of $19,490. Revenue comes 39.2% from local sources (property taxes), 49.8% from the state, and 11.0% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 17/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Rock River Charter School compares
Cross-validating school-level NCES values against Wisconsin state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Wisconsin | Wisconsin avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.6:1 | ▲ 10% | 15.1:1 | 15.9:1 |
| Free-lunch eligible | 75.9% | ▲ 97% | 38.5% | 51.8% |
| Enrollment | 267 | top 43% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
75.9%
free-lunch eligible
— 97% above the Wisconsin average of 38.5%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Staffing depth
16.6:1
students per teacher
— 10% above state mean
Top 85% in Wisconsin — lower ratio than 15% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
38.6%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$15,994
per pupil, district-wide
— below Wisconsin avg of $18,610
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.5 FTE
Per 534 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 8 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 267 Top 43% in Wisconsin — larger than 57% of 2,205 state schools
Teachers (FTE) 15.0
Students per teacher 16.6:1 +10% vs state
Free-lunch eligible 75.9% +97% vs state
NCES ID 550702001698
Student demographics
White 63.7%
African American 12.4%
Two or More 10.9%
Hispanic or Latino 10.1%
Asian 2.6%
American Indian / Alaska Native 0.4%
Largest group: White at 63.7% of enrollment.
Programs & staff
Counselors (FTE) 0.5
Students per counselor 534:1
Discipline & special education
Chronically absent 38.6%
In-school suspensions 0
Out-of-school suspensions 8
Funding & spending
District-wide per-pupil expenditure for Janesville School District, which includes Rock River Charter School.
$15,994
Per student
-14%
vs Wisconsin
Avg $18,610
-18%
vs U.S.
Avg $19,490
Revenue mix
Local 39.2%
State 49.8%
Federal 11.0%
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.
Other Schools in This District
- Enrollment
- 1,400
- Students per teacher
- 13.6:1
- Enrollment
- 1,272
- Students per teacher
- 12.9:1
- Enrollment
- 747
- Students per teacher
- 13.8:1
- Enrollment
- 587
- Students per teacher
- 13.3:1
- Enrollment
- 486
- Students per teacher
- 11.2:1
Similar other schools in Janesville
6 comparable other schools (grades Mixed) serving the same city.
Roosevelt Elementary
Standard public school
412 students 13.1:1 students per teacher
Washington Elementary
Standard public school
410 students 14.8:1 students per teacher
Van Buren Elementary
Standard public school
408 students 14.3:1 students per teacher
Kennedy Elementary
Standard public school
404 students 13.8:1 students per teacher
Monroe Elementary
Standard public school
376 students 13.6:1 students per teacher
Preschool 4 Janesville
Standard public school
345 students 23:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Rock River Charter School
How many students attend Rock River Charter School?
Rock River Charter School has 267 students enrolled. It is a other school in Janesville, WI.
What is the student-teacher ratio at Rock River Charter School?
The student-teacher ratio at Rock River Charter School is 16.6:1, which is 10% higher than the Wisconsin average of 15.1:1 and 4% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Rock River Charter School?
75.9% of students at Rock River Charter School are eligible for free lunch, compared to the Wisconsin average of 38.5%.
What is the racial and ethnic makeup of Rock River Charter School?
The largest demographic group at Rock River Charter School is White at 63.7%. The school serves a diverse student body in Janesville, WI.
What is the Resource Investment Index for Rock River Charter School?
Rock River Charter School has a Resource Investment Index of 17/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.