Enrollment
260
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Rock Island, IL
Federal NCES profile for Ridgewood Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Ridgewood Elem School earns 47/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
Ridgewood Elem School has class sizes smaller than 74% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Ridgewood Elem School ranks #2 of 7 schools in Rock Island, IL.
NCES ID 173441003535 Verify on NCES CCD record →
Enrollment
260
Illinois · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
11.8:1
vs 14:1 Illinois avg
-16% vs state
How Ridgewood Elem School compares with Illinois and U.S. medians
Smaller classes than state median
11.8:1 - 2.2 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Ridgewood Elem School is a mid-sized combined-grade school in Rock Island, Illinois, enrolling 260 students.
Class sizes run a bit leaner than typical: 11.8:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 260 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is led by White (52%) and African American (25%), more mixed than most schools in the state (diversity index 65/100).
Counselor coverage runs a bit thin, about 260 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
16.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Its district draws 21.6% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Rock Island's public schools, it stands alongside Rock Island Academy (540 students): Ridgewood Elem School is smaller than that campus by headcount and runs leaner classes (11.8:1 vs 15.9:1).
Rock Island Sd 41 also operates Rock Island High School (1,812 students) and Rock Island Academy (540 students) alongside Ridgewood Elem 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
Ridgewood Elem 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 | 11.8:1 | ▼ 16% | 14:1 | 15.7:1 |
| Enrollment | 260 | top 71% | - | - |
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 51.9% of enrollment.
Simpson diversity index - at 64.5, Ridgewood Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Rock Island Sd 41, which includes Ridgewood Elem 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 |
|---|---|---|---|
| Rock Island High School | Larger | No free-lunch data | Higher S:T ratio |
| Rock Island Academy | Larger | No free-lunch data | Higher S:T ratio |
| Washington Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Eugene Field Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Ricms | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Ridgewood Elem School's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
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 Ridgewood Elem 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.
Ridgewood Elem School has 260 students enrolled. It is a public school in Rock Island, IL.
The student-teacher ratio at Ridgewood Elem School is 11.8:1, which is 16% lower than the Illinois average of 14:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Ridgewood Elem School is White at 51.9% of enrollment, in Rock Island, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.5/100.
Ridgewood Elem School has a Resource Investment Index of 47/100 (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, Ridgewood Elem School ranks #2 of 7 schools in Rock Island, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Rock Island on the city page.
Ridgewood Elem School earns 47/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most 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 Ridgewood Elem School, Rock Island Sd 41 also operates Rock Island High School (1,812 students), Rock Island Academy (540 students), and Washington Jr High School (529 students). See the Rock Island Sd 41 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, “Ridgewood Elem School, Rock Island 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/ridgewood-elem-school-il-2
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