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SCHOOL COMMUNITY·WEST LINN-WILSONVILLE SD 3J·NCES 411317001437

Three Rivers Charter School

2565 SW Ek Rd, West Linn, OR 97068 · (503) 673-7850 · Clackamas County
GRADES 04–08MIDDLE21-SUBURBCHARTERREGULAR SCHOOL108 STUDENTS
Enrollment
108
Middle
DISTRICT 417 · STATE 494
Student : Teacher
20.6:1
5 FTE teachers
DISTRICT 16.7:1 · STATE 19.3:1
Free / Reduced Lunch
,
Title I proxy
DISTRICT 35% · STATE 76%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 4
23
Grade 5
23
Grade 6
21
Grade 7
20
Grade 8
21
Student demographics
White
6560%
DISTRICT 68% · STATE 57%
Hispanic
1110%
DISTRICT 16% · STATE 26%
Black
11%
DISTRICT 1% · STATE 2%
Asian
1413%
DISTRICT 4% · STATE 4%
Two+
1716%
DISTRICT 10% · STATE 7%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
6156%
Female
4744%

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Test scores

OSAS 2024-25 . % Proficient
English Language Arts
58.1%
OR avg 43.0% . -8.6pp since 2023
Math
58.1%
OR avg 31.8% . -6.4pp since 2023
Source: OSAS. All students, all grades. See all years and grades →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
108
-3 (-3%) vs 2017
Student : Teacher
20.6:1
was 18.5:1
% White
60%
was 69%
% Hispanic
10%
was 6%
% Black
1%
was 1%
% Asian
13%
was 17%
Source: NCES Common Core of Data

About Three Rivers Charter School

Three Rivers Charter School operates as an one-room-style middle-grades school in West Linn, Oregon, one of the schools within West Linn-Wilsonville SD 3J. Current enrollment sits at 108 students spanning grades 4 through 8. Compared to the state average of about 494 students per school, that is 78% smaller than typical.

West Linn-Wilsonville SD 3J runs 17 schools in total, collectively educating 8,842 students. Three Rivers Charter School is one of those campuses.

Demographically, Three Rivers Charter School records that the largest single group is White, at 60% of enrollment. Beyond that, the school shows 16% multiracial, 13% Asian, 10% Hispanic. By comparison, Clackamas County as a whole is about 79% White, so the school skews visibly less White than its surroundings.

In terms of school funding signals, On paper, Three Rivers Charter School has 5 full-time-equivalent teachers, translating to a class-load average of around 20.6:1. Statewide, the average ratio sits near 19.3:1, putting Three Rivers Charter School higher than the state norm the norm.

In the area at large, Clackamas County reports that median household income runs about $103,517, roughly 41% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. In all, Clackamas County runs 118 public schools (combined enrollment of about 57,601 students), of which Three Rivers Charter School is one.

The closest other public school is Stafford Primary School, roughly 0.7 miles away. Within five miles, there are 8 other public schools.

Geographically, the school is in a commuter-belt area. Three Rivers Charter School operates as a public charter school, meaning it is publicly funded but governed independently of the surrounding district's traditional schools.

Looking at the recent track record. Over the past 7-year window, the student count edged down 3%: 111 students in 2018 compared to 108 in 2025. White enrollment moved from 69% to 60% across the same window. The student-to-teacher ratio loosened from 18.5:1 in 2018 to 20.6:1 today.

On this page, members of the Three Rivers Charter School community share and discuss fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.

Clackamas County at a glance

View full county profile
Population
423,975
Census ACS
Median income
$103,517
Household, ACS
Bachelor's+
41%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
118
57,601 students

Quick facts

School name
Three Rivers Charter School
District
West Linn-Wilsonville SD 3J
Address
2565 SW Ek Rd, West Linn, OR 97068
Phone
(503) 673-7850
County
Clackamas County
Level
Middle
Grade range
04–08
Total enrollment
108
Teachers (FTE)
5
Student–teacher ratio
20.6:1
Locale
21-Suburb: Large
NCES ID
411317001437
Charter school
Yes
Virtual school
No

Related schools

Other schools in West Linn-Wilsonville SD 3J
Other schools in West Linn
Nearby schools

Frequently asked questions

About Three Rivers Charter School
What is the total enrollment at Three Rivers Charter School?
Three Rivers Charter School enrolls approximately 108 students in grades 04-08.
Is Three Rivers Charter School an elementary, middle, or high school?
Three Rivers Charter School is a middle school covering grades 04-08.
How many students per teacher at Three Rivers Charter School?
Approximately 20.6:1 students per teacher at Three Rivers Charter School.
What is the student diversity at Three Rivers Charter School?
Student demographics at Three Rivers Charter School are roughly 60% White, 10% Hispanic, 1% Black, 13% Asian, 16% Two or more.
What district is Three Rivers Charter School in?
Three Rivers Charter School is part of West Linn-Wilsonville SD 3J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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