Enrollment
262
Oregon · 2024-25 NCES data
Elementary school (grades K-5) · Milwaukie, OR
Federal NCES profile for Oak Grove Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
Oak Grove Elementary earns 23/100 on the Resource Investment Index, with class sizes near the Oregon median.
Oak Grove Elementary has class sizes near the Oregon median. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Oak Grove Elementary ranks #11 of 11 elementary schools in Milwaukie, OR.
NCES ID 410883001484 Verify on NCES CCD record →
Enrollment
262
Oregon · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
15.4:1
vs 17.6:1 Oregon avg
-13% vs state
Free-lunch eligible
76.0%
vs 52.8% Oregon avg
+44% vs state
How Oak Grove Elementary compares with Oregon and U.S. medians
Smaller classes than state median
15.4:1 - 2.2 below the Oregon state median of 17.6:1, indicating smaller average class loads than typical schools in the state.
Oak Grove Elementary is a high-poverty, mid-sized elementary school in Milwaukie, Oregon, enrolling 262 students.
Class sizes run a bit leaner than typical: 15.4:1 puts it in the smaller third of Oregon schools by student-teacher ratio.
Economic need is high: 76.0% of students qualify for free meals, 44% above the Oregon average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 262 puts it in the smaller third of Oregon schools by headcount.
Its Resource Investment Index trails 93% of the 1,273 Oregon schools with a score on record, one of the lower results on this measure.
Among 247 similarly sized, similarly resourced-need Oregon schools statewide, it ranks #225, in the lower tier once campus size and economic need are matched.
Its student body is led by White (60%) and Hispanic or Latino (23%) (diversity index 57/100).
Chronic absenteeism is elevated: 47.3% 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): Oak Grove Elementary is smaller than that campus by headcount and runs leaner classes (15.4:1 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 Oak Grove Elementary.
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
Oak Grove Elementary on the metrics families compare, against Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.4:1 | ▼ 13% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 76.0% | ▲ 44% | 52.8% | 51.7% |
| Enrollment | 262 | top 66% | - | - |
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 59.8% of enrollment.
Simpson diversity index - at 57.2, Oak Grove Elementary is more mixed than the Oregon school average of 47.1.
District-wide per-pupil expenditure for North Clackamas Sd 12, which includes Oak Grove Elementary.
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 Oak Grove Elementary'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 Oak Grove Elementary'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.
Oak Grove Elementary has 262 students enrolled. It is an elementary school in Milwaukie, OR.
The student-teacher ratio at Oak Grove Elementary is 15.4:1, which is 13% lower than the Oregon average of 17.6:1 and 2% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
76.0% of students at Oak Grove Elementary are eligible for free lunch, compared to the Oregon average of 52.8%.
The largest demographic group at Oak Grove Elementary is White at 59.8% of enrollment, in Milwaukie, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.2/100.
Oak Grove Elementary has a Resource Investment Index of 23/100 (lower 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, Oak Grove Elementary ranks #11 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.
Oak Grove Elementary earns 23/100 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 Oak Grove Elementary, 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, “Oak Grove Elementary, 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/oak-grove-elementary-or
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