Enrollment
1,060
Oregon · 2024-25 NCES data
High school (grades 9-12) · Milwaukie, OR
Federal NCES profile for Putnam High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
The verdict
Putnam High School earns 20/100 on the Resource Investment Index, with class sizes larger than 93% of Oregon schools.
Putnam High School has class sizes larger than 93% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Putnam High School ranks #4 of 4 high schools in Milwaukie, OR.
NCES ID 410883000095 Verify on NCES CCD record →
Enrollment
1,060
Oregon · 2024-25 NCES data
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
24.1:1
vs 17.6:1 Oregon avg
+37% vs state
Free-lunch eligible
33.0%
vs 52.8% Oregon avg
-37% vs state
How Putnam High School compares with Oregon and U.S. medians
Larger classes than state median
24.1:1 - 6.5 above the Oregon state median of 17.6:1, indicating larger average class loads than typical schools in the state.
Putnam High School is a large high school in Milwaukie, Oregon, enrolling 1,060 students.
Class loads run heavy: 24.1:1 is larger than about 93% of Oregon schools and 37% above the 17.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 33.0% of students eligible for free meals.
By headcount it is one of the larger campuses in Oregon, bigger than 94% of state schools at 1,060 students.
Its Resource Investment Index lands in the lower third of 1,273 scored Oregon schools.
Among 53 similarly sized, similarly resourced-need Oregon schools statewide, it ranks #47, in the lower tier once campus size and economic need are matched.
Its student body is led by White (57%) and Hispanic or Latino (30%) (diversity index 58/100).
On the academic-pipeline side it reports 1 Advanced Placement course.
Chronic absenteeism is elevated: 45.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Milwaukie's high schools, it stands alongside Milwaukie High School (874 students): Putnam High School is larger than that campus by headcount and runs heavier classes (24.1:1 vs 19:1).
North Clackamas Sd 12 also operates Adrienne C. Nelson High School (1,536 students) and Clackamas High School (1,280 students) alongside Putnam 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
Putnam High 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 | 24.1:1 | ▲ 37% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 33.0% | ▼ 37% | 52.8% | 51.7% |
| Enrollment | 1,060 | top 6% | - | - |
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 57.4% of enrollment.
Simpson diversity index - at 57.7, Putnam High School is more mixed than the Oregon school average of 47.1.
District-wide per-pupil expenditure for North Clackamas Sd 12, which includes Putnam 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 |
|---|---|---|---|
| Adrienne C. Nelson High School | Larger | Lower economic need | Higher S:T ratio |
| Clackamas High School | Similar size | Lower economic need | Higher S:T ratio |
| Happy Valley Middle School | Similar size | Lower economic need | Similar S:T ratio |
| Rock Creek Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Milwaukie High School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Putnam High School's own figures; each column derives from NCES Common Core of Data.
3 comparable high schools (grades 9-12) 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 Putnam 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.
Putnam High School has 1,060 students enrolled. It is a high school in Milwaukie, OR.
The student-teacher ratio at Putnam High School is 24.1:1, which is 37% higher than the Oregon average of 17.6:1 and 54% higher than the national average of 15.7:1.
33.0% of students at Putnam High School are eligible for free lunch, compared to the Oregon average of 52.8%.
The largest demographic group at Putnam High School is White at 57.4% of enrollment, in Milwaukie, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.7/100.
Putnam High School has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Putnam High School ranks #4 of 4 high 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 high schools in Milwaukie on the city page.
Putnam High School earns 20/100 on the Resource Investment Index, with class sizes larger than 93% of Oregon 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 Putnam High 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, “Putnam High 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/putnam-high-school-or
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