Enrollment
285
Oregon · 2024-25 NCES data
Other / mixed grade configuration · Aurora, OR
Federal NCES profile for North Marion Primary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
The verdict
North Marion Primary School earns 28/100 on the Resource Investment Index, even as it posts class sizes smaller than 73% of Oregon schools.
North Marion Primary School has class sizes smaller than 73% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, North Marion Primary School ranks #2 of 4 public schools in Aurora, OR.
NCES ID 410888001424 Verify on NCES CCD record →
Enrollment
285
Oregon · 2024-25 NCES data
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
15:1
vs 17.6:1 Oregon avg
-15% vs state
Free-lunch eligible
46.9%
vs 52.8% Oregon avg
-11% vs state
How North Marion Primary School compares with Oregon and U.S. medians
Smaller classes than state median
15:1 - 2.6 below the Oregon state median of 17.6:1, indicating smaller average class loads than typical schools in the state.
North Marion Primary School is a mid-sized combined-grade school in Aurora, Oregon, enrolling 285 students.
Class sizes run a bit leaner than typical: 15:1 puts it in the smaller third of Oregon schools by student-teacher ratio.
Its free-meal eligibility rate of 46.9% lands close to the Oregon typical range, neither a high- nor low-need campus by this measure.
With 285 students, its enrollment sits close to the Oregon median campus size.
Its Resource Investment Index lands in the lower third of 1,273 scored Oregon schools.
Among 103 similarly sized, similarly resourced-need Oregon schools statewide, it ranks #89, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (51%) and White (41%) (diversity index 56/100).
Counselor coverage runs a bit thin, about 285 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 70.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
North Marion Sd 15 also operates North Marion High School (564 students) and North Marion Middle School (410 students) alongside North Marion Primary 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
North Marion Primary 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 | 15:1 | ▼ 15% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 46.9% | ▼ 11% | 52.8% | 51.7% |
| Enrollment | 285 | top 61% | - | - |
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: Hispanic or Latino at 51.2% of enrollment.
Simpson diversity index - at 56.2, North Marion Primary School is more mixed than the Oregon school average of 47.1.
District-wide per-pupil expenditure for North Marion Sd 15, which includes North Marion Primary 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 |
|---|---|---|---|
| North Marion High School | Larger | Lower economic need | Higher S:T ratio |
| North Marion Middle School | Larger | Similar economic need | Higher S:T ratio |
| North Marion Intermediate School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to North Marion Primary School's own figures; each column derives from NCES Common Core of Data.
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 North Marion Primary 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.
North Marion Primary School has 285 students enrolled. It is a public school in Aurora, OR.
The student-teacher ratio at North Marion Primary School is 15:1, which is 15% lower than the Oregon average of 17.6:1 and 4% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
46.9% of students at North Marion Primary School are eligible for free lunch, compared to the Oregon average of 52.8%.
The largest demographic group at North Marion Primary School is Hispanic or Latino at 51.2% of enrollment, in Aurora, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.2/100.
North Marion Primary School has a Resource Investment Index of 28/100 (lower 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, North Marion Primary School ranks #2 of 4 public schools in Aurora, 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 Aurora on the city page.
North Marion Primary School earns 28/100 on the Resource Investment Index, even as it posts class sizes smaller than 73% 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 North Marion Primary School, North Marion Sd 15 also operates North Marion High School (564 students), North Marion Middle School (410 students), and North Marion Intermediate School (345 students). See the North Marion Sd 15 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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Last updated:
PlainSchools, “North Marion Primary School, Aurora 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/north-marion-primary-school-or
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