Enrollment
311
Oregon · 2024-25 NCES data
Elementary school (grades K-5) · Milwaukie, OR
Federal NCES profile for Riverside Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
The verdict
Riverside Elementary School earns 34/100 on the Resource Investment Index, with class sizes near the Oregon median.
Riverside Elementary School has class sizes near the Oregon median. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Riverside Elementary School ranks #8 of 11 elementary schools in Milwaukie, OR.
NCES ID 410883000084 Verify on NCES CCD record →
Enrollment
311
Oregon · 2024-25 NCES data
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
17.3:1
vs 17.6:1 Oregon avg
-2% vs state
Free-lunch eligible
70.4%
vs 52.8% Oregon avg
+33% vs state
How Riverside Elementary School compares with Oregon and U.S. medians
At or below state median
17.3:1 - 0.3 below the Oregon state median of 17.6:1, indicating smaller average class loads than typical schools in the state.
Riverside Elementary School is a higher-need, mid-sized elementary school in Milwaukie, Oregon, enrolling 311 students.
At 17.3:1, its student-teacher ratio sits close to the Oregon median, within a few percentage points of the 17.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 70.4% of students eligible for free meals.
With 311 students, its enrollment sits close to the Oregon median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,273 scored Oregon schools.
Against 288 statewide peers matched on enrollment and economic need, it ranks mid-pack at #165.
Its student body is led by White (54%) and Hispanic or Latino (39%) (diversity index 56/100).
Chronic absenteeism is elevated: 43.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Milwaukie's elementary schools, it stands alongside Whitcomb Elementary School (415 students): Riverside Elementary School is smaller than that campus by headcount and runs leaner classes (17.3:1 vs 18:1).
North Clackamas Sd 12 also operates Adrienne C. Nelson High School (1,536 students) and Clackamas High School (1,280 students) alongside Riverside Elementary 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
Riverside Elementary School on the metrics families compare, against Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.3:1 | ▼ 2% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 70.4% | ▲ 33% | 52.8% | 51.7% |
| Enrollment | 311 | top 56% | - | - |
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 53.9% of enrollment.
Simpson diversity index - at 55.5, Riverside Elementary School is more mixed than the Oregon school average of 47.1.
District-wide per-pupil expenditure for North Clackamas Sd 12, which includes Riverside Elementary 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 |
|---|---|---|---|
| Adrienne C. Nelson High School | Larger | Lower economic need | Higher S:T ratio |
| Clackamas High School | Larger | Lower economic need | Higher S:T ratio |
| Happy Valley Middle School | Larger | Lower economic need | Higher S:T ratio |
| Putnam High School | Larger | Lower economic need | Higher S:T ratio |
| Rock Creek Middle School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Riverside Elementary School's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Oregon, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Riverside Elementary 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.
Riverside Elementary School has 311 students enrolled. It is an elementary school in Milwaukie, OR.
The student-teacher ratio at Riverside Elementary School is 17.3:1, which is 2% lower than the Oregon average of 17.6:1 and 10% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
70.4% of students at Riverside Elementary School are eligible for free lunch, compared to the Oregon average of 52.8%.
The largest demographic group at Riverside Elementary School is White at 53.9% of enrollment, in Milwaukie, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.5/100.
Riverside Elementary School has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Riverside Elementary School ranks #8 of 11 elementary schools in Milwaukie, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Milwaukie on the city page.
Riverside Elementary School earns 34/100 on the Resource Investment Index, with class sizes near the Oregon median. 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 Riverside Elementary School, North Clackamas Sd 12 also operates Adrienne C. Nelson High School (1,536 students), Clackamas High School (1,280 students), and Happy Valley Middle School (1,158 students). See the North Clackamas Sd 12 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, “Riverside Elementary School, Milwaukie OR.” 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/riverside-elementary-school-or-2
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