Summary:
ZIP code 98503 has one listed high school, Timberline High School in Lacey, Washington, serving grades 9–12 with 1,401 students as part of North Thurston Public Schools.
Timberline offers a mixed academic profile, with strong graduation and English Language Arts results but notable challenges in math and science. The 2024–2025 graduation rate was 91.5%, higher than the district’s 86.8% and the state’s 82.6%. Its dropout rate was 6.3%, also better than the district’s 8.9% and the state’s 9.8%. English Language Arts was the school’s strongest tested subject in 2025–2026: 72.05% of students were proficient, compared with about 52% in both the district and Washington state. ELA performance also improved by 6.76 percentage points from the previous year.
Math is the most important area for families to consider. Only 24.48% of Timberline students were proficient in math, compared with 38.63% districtwide and 43.11% statewide. Science proficiency was 43.67%, below both the district and state at roughly 51%. The school’s ranking improved from the 47th percentile in 2024–2025 to the 56th percentile in 2025–2026, although it remained below its 64th-percentile result in 2023–2024. Timberline has a 21:1 student-teacher ratio, 40.9% of students qualify for free or reduced-price lunch, and reported per-student spending was $16,429. Overall, the school appears strongest in helping students stay on track to graduate and in ELA, while parents may want to ask about math support, science instruction, tutoring, and course-specific achievement.
Thank you for your feedback!