Twin Rivers Charter School

Twin Rivers Charter School is a small public charter high school at 2621 Augusta St in Eugene, Oregon, serving grades 8–12 with just 55 students — the smallest high school in this group — inside Eugene School District 4J, a district that ranks in the 84th percentile statewide. The school's own rank, however, sits in the lower third of Oregon high schools (31st percentile, 2 stars).

Academically, results are mixed rather than uniformly weak. Science is the bright spot: 34.8% of students met state standards in science, above Oregon's 30.6% and close to the 4J average. English language arts (30.4%) and especially math (8.7%) trail well behind both the district (48% and 37.7%) and the state. By comparison, Sheldon High School posts 39.7% in math and South Eugene High School 46.1%, while Churchill High School posts 27.9%. Twin Rivers' math results instead resemble the area's other charters — Network Charter School, Academy of Arts and Academics and Willamette Leadership Academy all report under 5%. Eighth-grade scores are suppressed by the state because the group is so small; that is a privacy rule, not a sign of weakness.

On other measures, Twin Rivers beat both its district and the state on 2024–25 graduation (85.7%), comparable to Sheldon High School and South Eugene High School and far above Gateways High School (30.6%). Chronic absenteeism (42.3%) is above the district and state but nearly identical to the three 4J comprehensive high schools, so it looks like a regional pattern. The school spends $14,102 per student — roughly $8,000–$9,500 less than those comprehensives — and its student–teacher ratio rose to 22.0, which at 55 students means a single staffing change can move the number sharply. Year-to-year swings in graduation (50.0% to 85.7%) and attendance reflect small cohorts. Poverty data is unreported and eighth-grade results are suppressed, so treat comparisons as directional.