Enrollment
2,345
Oregon · 2024-25 NCES data
Other / mixed grade configuration · Mill City, OR
Federal NCES profile for Oregon Charter Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Oregon Charter Academy earns 38/100 on the Resource Investment Index, with class sizes near the Oregon median. It is also one of the largest schools in Oregon.
Oregon Charter Academy has class sizes near the Oregon median. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Oregon Charter Academy ranks #1 of 3 public schools in Mill City, OR.
NCES ID 410810001680 Verify on NCES CCD record →
Enrollment
2,345
Oregon · 2024-25 NCES data
Teachers (FTE)
128.0
Federal CCD staff survey
Students per teacher
18.3:1
vs 17.6:1 Oregon avg
+4% vs state
How Oregon Charter Academy compares with Oregon and U.S. medians
Slightly above state median
18.3:1 - 0.7 above the Oregon state median of 17.6:1, indicating larger average class loads than typical schools in the state.
Oregon Charter Academy is a large charter combined-grade school in Mill City, Oregon, enrolling 2,345 students.
Class loads run somewhat heavier than typical: 18.3:1 puts it in the larger third of Oregon schools by student-teacher ratio.
By headcount it is one of the larger campuses in Oregon, bigger than 99% of state schools at 2,345 students.
Its Resource Investment Index sits near the middle of the pack among 1,273 scored Oregon schools.
Its student body is led by White (65%) and Hispanic or Latino (20%) (diversity index 53/100).
Counselor coverage is strong, about 213 students per counselor, inside the American School Counselor Association's recommended 250:1.
The surrounding Santiam Canyon Sd 129j spends $3,448 per pupil, 81% below the Oregon average, a leaner-resourced district than most.
Among Mill City's public schools, it stands alongside Santiam Junior/Senior High School (319 students): Oregon Charter Academy is larger than that campus by headcount and runs heavier classes (18.3:1 vs 13.9:1).
Santiam Canyon Sd 129j also operates Santiam Junior/Senior High School (319 students) and Santiam Elementary School (249 students) alongside Oregon Charter Academy.
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
Oregon Charter Academy on the metrics families compare, against Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.3:1 | ▲ 4% | 17.6:1 | 15.7:1 |
| Enrollment | 2,345 | top 1% | - | - |
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 64.7% of enrollment.
Simpson diversity index - at 53.3, Oregon Charter Academy is more mixed than the Oregon school average of 47.1.
District-wide per-pupil expenditure for Santiam Canyon Sd 129j, which includes Oregon Charter Academy.
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 |
|---|---|---|---|
| Santiam Junior/Senior High School | Smaller | No free-lunch data | Lower S:T ratio |
| Santiam Elementary School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Oregon Charter Academy's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) 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 Oregon Charter Academy'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.
Oregon Charter Academy has 2,345 students enrolled. It is a public school in Mill City, OR.
The student-teacher ratio at Oregon Charter Academy is 18.3:1, which is 4% higher than the Oregon average of 17.6:1 and 17% higher than the national average of 15.7:1.
The largest demographic group at Oregon Charter Academy is White at 64.7% of enrollment, in Mill City, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.3/100.
Oregon Charter Academy has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Oregon Charter Academy ranks #1 of 3 public schools in Mill City, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mill City on the city page.
Oregon Charter Academy earns 38/100 on the Resource Investment Index, with class sizes near the Oregon median. It is also one of the largest schools in Oregon. 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 Oregon Charter Academy, Santiam Canyon Sd 129j also operates Santiam Junior/Senior High School (319 students) and Santiam Elementary School (249 students). See the Santiam Canyon Sd 129j 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, “Oregon Charter Academy, Mill City 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/oregon-charter-academy-or
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