Trillium Creek Primary School

Located at 1025 Rosemont Rd, in West Linn, Oregon, Trillium Creek Primary School is a reasonably sized K-5 school that educates 480 students (grades pre-K through 5), run under West Linn-Wilsonville SD 3J. Enrollment runs roughly 50% above the state mean of about 321.

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

In terms of who attends, Trillium Creek Primary School shows that White students make up the majority at 73%. Other groups include 12% multiracial, 9% Hispanic, 5% Asian.

On the income-and-resources front, On paper, Trillium Creek Primary School has 25 full-time-equivalent teachers, translating to a class-load average of around 19.4:1. The state averages around 16.5:1, so this campus is higher than the state norm typical. An estimated 14% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is noticeably below Clackamas County's rate of about 50%.

After controlling for student poverty, Trillium Creek Primary School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 57.0%; this one delivers 57.9%.

Zooming out to the county, census data for Clackamas County shows median household earnings sit near $103,517, about 41% of the adult population holds a bachelor's degree or above, and roughly 5% of residents live below the federal poverty line. Across Clackamas County's 118 public schools (combined enrollment of about 57,601 students), Trillium Creek Primary School is one campus in the mix.

Rosemont Ridge Middle School is the nearest neighboring public school, about 0.4 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Trillium Creek Primary School. Ranking that nearby cluster on reported proficiency puts Trillium Creek Primary School at 3rd of 6; the average score across the group is 59.5%.

Geographically, the school is in a commuter-belt area.

Trend over the last 7 years. Trillium Creek Primary School's enrollment has contracted 22% since 2018, when it stood at 614 (now 480). Class-load math has pulled in: from 20.7:1 in 2018 to 19.4:1 in 2025.

In the discussion threads here, recent activity here tends to focus on enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.