Triangle Lake Charter School

Triangle Lake Charter School operates as a mid-sized combined-grade school in Blachly, Oregon, one of the schools within Blachly SD 90. Current enrollment sits at 416 students spanning grades K through 12.

Operationally, Triangle Lake Charter School answers to Blachly SD 90, which sets policy, hires staff, and reports enrollment to the state.

On the student-mix side, Triangle Lake Charter School records that the student body is overwhelmingly White (87%). Other groups include 5% Hispanic, 5% multiracial.

Looking at the economic backdrop, On paper, Triangle Lake Charter School has 18 full-time-equivalent teachers, translating to a class-load average of around 23.2:1. Statewide, the average ratio sits near 22.5:1, putting Triangle Lake Charter School higher than the state norm the norm. Roughly 69% of students at Triangle Lake Charter School qualify for free or reduced-price lunch, often used as a Title I proxy.

On a demographically-adjusted basis, Triangle Lake Charter School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 35.8%, the actual is 29.2%, a residual of -6.6 points.

Around the school, Lane County reports that median household income runs about $71,544, 34% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 8%. Across Lane County's 117 public schools (combined enrollment of about 42,240 students), Triangle Lake Charter School is one campus in the mix.

Territorial Elementary School is the nearest neighboring public school, about 11.7 miles from this campus. Ranking that nearby cluster on reported proficiency puts Triangle Lake Charter School at 6th of 8; the average score across the group is 33.7%.

The school occupies a rural site. As a public charter, Triangle Lake Charter School runs on public funding but with greater curricular and operational autonomy than a typical district school.

Trend over the last 7 years. Looking back 7 years, enrollment at Triangle Lake Charter School has expanded 83%, going from 227 students in 2018 to 416 in 2025. The student-to-teacher ratio grew from 13.2:1 in 2018 to 23.2:1 today.

On this page, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.