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SCHOOL COMMUNITY·BLACHLY SD 90·NCES 410216000641

Triangle Lake Charter School

20264 Blachly Grange Rd, Blachly, OR 97412 · (541) 925-3262 · Lane County
GRADES KG–12COMBINED42-RURALCHARTERTITLE IREGULAR SCHOOL416 STUDENTS
C+
allk12 Grade
Scored higher than 41% of Oregon public K-12 schools
  • C+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Oregon public K-12 schools

Enrollment
416
Combined
STATE 384
Student : Teacher
23.2:1
18 FTE teachers
STATE 22.5:1
Free / Reduced Lunch
69%
287 students
STATE 76%
Community
1
0 members
Enrollment and student:teacher ratio compared against other combined schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten358%
Grade 1348%
Grade 24310%
Grade 3348%
Grade 44110%
Grade 55213%
Grade 6276%
Grade 7358%
Grade 8389%
Grade 9225%
Grade 10215%
Grade 11205%
Grade 12143%

This year's kindergarten class (35) is 8% smaller than its 8th grade class (38).

Student demographics
24%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 59% · US 70%
White
36187%
STATE 57% · US 43%
Hispanic
225%
STATE 26% · US 30%
Black
51%
STATE 2% · US 15%
Asian
20%
STATE 4% · US 6%
Two+
225%
STATE 7% · US 5%
Native American
41%
STATE 1% · US 1%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
19447%
Female
22253%

Discussions

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Test scores

OSAS 2024-25 . % Proficient
English Language Arts
37.0%
OR avg 43.0% . +2.1pp since 2023
Math
22.3%
OR avg 31.8% . -0.5pp since 2023

What this means: On the OSAS, Oregon's statewide test, about 37 of every 100 students at this school read and write at grade level and about 22 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores are up about 2 points since 2023, while math scores have held steady.

OSAS results by year

School yearEnglish Language ArtsMath
2024-2537.0%22.3%
2023-2434.9%22.8%
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
29.2%
composite math + reading, all grades
Predicted
35.8%
based on OR schools with similar FRL share
Beats by
-6.6pp
below demographic expectation

What this means: About 29% of students here test proficient in math and reading, compared with the roughly 36% typical for Oregon schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Oregon's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
416
+199 (+92%) vs 2020
+134% since 1990-91, when it was 178
Student : Teacher
23.2:1
was 13.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2541617.923.2:169% (287)
2023-243991723.4:125% (98)
2022-2340618.322.2:128% (114)
2020-212171613.6:173% (159)
2017-1822717.213.2:156% (128)
2015-162541714.9:155% (140)
2010-111591114.4:160% (96)
2000-011381112.6:164% (89)
1990-911781214.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Triangle Lake Charter School.

Since 2017-18: students up 83% (227 to 416); teachers up 4% (17.2 to 17.9).

About Triangle Lake Charter School

Among the schools in Blachly, Oregon, is Triangle Lake Charter School, a medium-sized combined-grade school. Enrollment is 416 students in 2024-25, and the school serves kindergarten through 12.

Triangle Lake Charter School is run by Blachly SD 90.

Triangle Lake Charter School enrolls a student body that is 87% White. Beyond that, enrollment is 5% Hispanic and 5% multiracial. By the diversity index, Triangle Lake Charter School comes in at 24%.

Dividing enrollment by its 17.9 full-time-equivalent teachers gives a ratio of about 23.2:1. Among combined schools in Oregon, the typical ratio is 22.5:1. Eligible students account for 69% of enrollment in the free or reduced-price lunch program.

Triangle Lake Charter School is graded C+ by allk12, scoring above 41% of Oregon public K-12 schools once test results, poverty-adjusted performance, and the recent trend are combined.

Given its share of students eligible for free or reduced-price lunch, Triangle Lake Charter School would be expected to post about 35.8%. Its actual average proficiency rate on state tests is 29.2%.

In Lane County (population about 384,207), median household income is about $71,544, the share of adults with a bachelor's degree or higher is 34%, and about 8% of people live in poverty. A total of 117 public schools operate in Lane County, serving about 42,240 students.

The nearest other public school, Territorial Elementary School, is about 11.7 miles away. Ranked by average proficiency, Triangle Lake Charter School places 6th out of 8 schools in its immediate area.

NCES lists the school's locale as Rural: Distant. That means it sits in rural territory some distance from an urban area. The school is a charter school, funded with public money and operated under a charter agreement.

The 2020-21 count was 217 students and the 2024-25 count was 416. A difference that large may reflect a change in which grades the school serves. Staffing shifted too: the ratio moved from 13.6:1 to 23.2:1.

The Triangle Lake Charter School community page is open for posts about school events, clubs, and volunteer needs. Posting is open to anyone connected to the school.

Lane County at a glance

View full county profile
Population
384,207
Census ACS
Median income
$71,544
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
117
42,240 students

Quick facts

School name
Triangle Lake Charter School
District
Blachly SD 90
Address
20264 Blachly Grange Rd, Blachly, OR 97412
Phone
(541) 925-3262
County
Lane County
Level
Combined
Grade range
KG–12
Total enrollment
416
Teachers (FTE)
18
Student–teacher ratio
23.2:1
Free and reduced lunch
287 (69%)
Locale
42-Rural: Distant
NCES ID
410216000641
Charter school
Yes
Virtual school
No

Related schools

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Frequently asked questions

About Triangle Lake Charter School
How large is Triangle Lake Charter School?
Triangle Lake Charter School enrolls approximately 416 students in grades KG-12.
Is Triangle Lake Charter School an elementary, middle, or high school?
Triangle Lake Charter School is a combined-grade school covering grades KG-12.
What is the student-teacher ratio at Triangle Lake Charter School?
The student-to-teacher ratio at Triangle Lake Charter School is approximately 23.2:1 (18 FTE teachers).
What is the racial breakdown of students at Triangle Lake Charter School?
At Triangle Lake Charter School, the student body is approximately 87% White, 5% Hispanic, 1% Black, 0% Asian, 5% Two or more.
Is Triangle Lake Charter School public or private?
Triangle Lake Charter School is a public K-12 school operated as a charter, overseen by Blachly SD 90.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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