Enrollment
128
Illinois · 2024-25 NCES data
High school (grades 9-12) · Hanover, IL
Federal NCES profile for River Ridge High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
The verdict
River Ridge High School earns 37/100 on the Resource Investment Index, with class sizes smaller than 94% of Illinois schools.
River Ridge High School has class sizes smaller than 94% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, River Ridge High School ranks #3 of 3 public schools in Hanover, IL.
NCES ID 170000105115 Verify on NCES CCD record →
Enrollment
128
Illinois · 2024-25 NCES data
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
9.1:1
vs 14:1 Illinois avg
-35% vs state
How River Ridge High School compares with Illinois and U.S. medians
Smaller classes than state median
9.1:1 - 4.9 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
River Ridge High School is a small high school in Hanover, Illinois, enrolling 128 students.
Classes run notably small here: at 9.1:1, River Ridge High School is leaner than roughly 94% of Illinois schools and 35% under the state's 14:1 norm, more adult attention per pupil than most peers.
This is a small campus: fewer students than 92% of Illinois schools, with 128 enrolled.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is predominantly White (89% of enrollment) (diversity index 20/100).
On the academic-pipeline side it reports 3 Advanced Placement courses.
Counselor coverage runs a bit thin, about 256 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 29.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding River Ridge Cusd 210 spends $22,594 per pupil, 33% above the Illinois average, a better-resourced district than most.
River Ridge Cusd 210 also operates River Ridge Elementary School (224 students) and River Ridge Middle School (91 students) alongside River Ridge 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
River Ridge 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 | 9.1:1 | ▼ 35% | 14:1 | 15.7:1 |
| Enrollment | 128 | top 92% | - | - |
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 89.1% of enrollment.
Simpson diversity index - at 19.8, River Ridge High School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for River Ridge Cusd 210, which includes River Ridge 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 |
|---|---|---|---|
| River Ridge Elementary School | Larger | No free-lunch data | Higher S:T ratio |
| River Ridge Middle School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to River Ridge 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 River Ridge 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.
River Ridge High School has 128 students enrolled. It is a high school in Hanover, IL.
The student-teacher ratio at River Ridge High School is 9.1:1, which is 35% lower than the Illinois average of 14:1 and 42% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at River Ridge High School is White at 89.1% of enrollment, in Hanover, IL.
River Ridge High School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, River Ridge High School ranks #3 of 3 public schools in Hanover, 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 Hanover on the city page.
River Ridge High School earns 37/100 on the Resource Investment Index, with class sizes smaller than 94% 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 River Ridge High School, River Ridge Cusd 210 also operates River Ridge Elementary School (224 students) and River Ridge Middle School (91 students). See the River Ridge Cusd 210 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, “River Ridge High School, Hanover 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/river-ridge-high-school-il/
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