Enrollment
183
Wisconsin · 2024-25 NCES data
Other / mixed grade configuration · Rio, WI
Federal NCES profile for Rio Middle/High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Rio Middle/High earns 43/100 on the Resource Investment Index, with class sizes smaller than 93% of Wisconsin schools.
Rio Middle/High has class sizes smaller than 93% of Wisconsin schools. Computed live against every Wisconsin school reporting to NCES.
NCES ID 551299001713 Verify on NCES CCD record →
Enrollment
183
Wisconsin · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
9.2:1
vs 14.4:1 Wisconsin avg
-36% vs state
Free-lunch eligible
32.1%
vs 38.5% Wisconsin avg
-17% vs state
How Rio Middle/High compares with Wisconsin and U.S. medians
Smaller classes than state median
9.2:1 - 5.2 below the Wisconsin state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
Rio Middle/High is a mid-sized combined-grade school in Rio, Wisconsin, enrolling 183 students.
Classes run notably small here: at 9.2:1, Rio Middle/High is leaner than roughly 93% of Wisconsin schools and 36% under the state's 14.4:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 32.1% lands close to the Wisconsin typical range, neither a high- nor low-need campus by this measure.
Enrollment of 183 puts it in the smaller third of Wisconsin schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,202 scored Wisconsin schools.
Against 300 statewide peers matched on enrollment and economic need, it ranks mid-pack at #167.
Its student body is predominantly White (91% of enrollment) (diversity index 16/100).
Counselor coverage is strong, about 105 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 54.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Rio's public schools, it stands alongside Rio Elementary (169 students): Rio Middle/High is larger than that campus by headcount and runs leaner classes (9.2:1 vs 11.3:1).
Its district, Rio Community School District, also runs Rio Elementary (169 students).
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
Rio Middle/High on the metrics families compare, against Wisconsin and U.S. means.
| Metric | This school | vs Wisconsin | Wisconsin avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.2:1 | ▼ 36% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 32.1% | ▼ 17% | 38.5% | 51.7% |
| Enrollment | 183 | top 72% | - | - |
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 91.3% of enrollment.
Simpson diversity index - at 16.3, Rio Middle/High is less mixed than the Wisconsin school average of 35.7.
District-wide per-pupil expenditure for Rio Community School District, which includes Rio Middle/High.
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 |
|---|---|---|---|
| Rio Elementary | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Rio Middle/High's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Wisconsin, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Rio Middle/High'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.
Rio Middle/High has 183 students enrolled. It is a public school in Rio, WI.
The student-teacher ratio at Rio Middle/High is 9.2:1, which is 36% lower than the Wisconsin average of 14.4:1 and 41% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
32.1% of students at Rio Middle/High are eligible for free lunch, compared to the Wisconsin average of 38.5%.
The largest demographic group at Rio Middle/High is White at 91.3% of enrollment, in Rio, WI.
Rio Middle/High has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Rio Middle/High earns 43/100 on the Resource Investment Index, with class sizes smaller than 93% of Wisconsin 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 Rio Middle/High, Rio Community School District also operates Rio Elementary (169 students). See the Rio Community School District 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, “Rio Middle/High, Rio WI.” 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/rio-middlehigh-wi
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