Enrollment
108
Oregon · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 411317001437 Charter school
Three Rivers Charter School — West Linn, OR
Federal NCES profile for Three Rivers Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 65/100.
👥 Class size 38
🌟 Gifted program 70
🎓 Counselors 78
📋 Attendance 75
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: West Linn-Wilsonville Sd 3j · Oregon
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
7.0
Federal CCD staff survey
Students per teacher
15.6:1
vs 18.2:1 Oregon avg
-14% vs state
Student-teacher ratio in context
How Three Rivers Charter School compares with Oregon and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Three Rivers Charter School reports 108 enrolled students to the National Center for Education Statistics (NCES) alongside 7.0 full-time-equivalent teachers, producing a 15.6:1 student-teacher ratio. That figure sits 14% below the Oregon state mean of 18.2:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 2% lower, a useful calibration for families comparing districts across state lines.
Counselor coverage works out to roughly 108 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 10.2% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding West Linn-Wilsonville Sd 3j spends $22,157 per pupil district-wide, below the Oregon average of $22,293 and above the national average of $19,490. Revenue comes 50.1% from local sources (property taxes), 46.8% from the state, and 3.1% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 65/100 (B-), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Three Rivers Charter School compares
Cross-validating school-level NCES values against Oregon state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.6:1 | ▼ 14% | 18.2:1 | 15.9:1 |
| Enrollment | 108 | top 11% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
15.6:1
students per teacher
— 14% below state mean
Top 29% in Oregon — lower ratio than 71% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
10.2%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$22,157
per pupil, district-wide
— below Oregon avg of $22,293
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 108 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 108 Top 11% in Oregon — larger than 89% of 1,277 state schools
Teachers (FTE) 7.0
Students per teacher 15.6:1 -14% vs state
Free-lunch eligible —
NCES ID 411317001437
Student demographics
White 60.2%
Two or More 15.7%
Asian 13.0%
Hispanic or Latino 10.2%
African American 0.9%
Largest group: White at 60.2% of enrollment.
Programs & staff
Gifted & talented Yes
Counselors (FTE) 1.0
Students per counselor 108:1
Discipline & special education
Chronically absent 10.2%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for West Linn-Wilsonville Sd 3j, which includes Three Rivers Charter School.
$22,157
Per student
-1%
vs Oregon
Avg $22,293
+14%
vs U.S.
Avg $19,490
Revenue mix
Local 50.1%
State 46.8%
Federal 3.1%
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.
Other Schools in This District
- Enrollment
- 1,809
- Students per teacher
- 23.2:1
- Enrollment
- 1,258
- Students per teacher
- 19.8:1
- Enrollment
- 699
- Students per teacher
- 20.9:1
- Enrollment
- 488
- Students per teacher
- 16.3:1
- Enrollment
- 482
- Students per teacher
- 19.1:1
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Three Rivers Charter School
How many students attend Three Rivers Charter School?
Three Rivers Charter School has 108 students enrolled. It is a elementary school in West Linn, OR.
What is the student-teacher ratio at Three Rivers Charter School?
The student-teacher ratio at Three Rivers Charter School is 15.6:1, which is 14% lower than the Oregon average of 18.2:1 and 2% lower than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Three Rivers Charter School?
The largest demographic group at Three Rivers Charter School is White at 60.2%. The school serves a diverse student body in West Linn, OR.
What is the Resource Investment Index for Three Rivers Charter School?
Three Rivers Charter School has a Resource Investment Index of 65/100 (B-) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.