Summary:
ZIP code 98388 has one listed high school, Steilacoom High, serving grades 9–12 in the Steilacoom Hist. School District, with 968 students and a 24.3-to-1 student-teacher ratio.
Steilacoom High is a strong statewide performer and the only high school available for comparison in this ZIP code. It ranked 49th out of 396 Washington high schools for 2025–2026, placing it in the reported 88th percentile, and has maintained a four-star rating. Its ranking improved substantially from 113th in 2023–2024 to 74th in 2024–2025 and then 49th in 2025–2026. The school also reported a 91.3% graduation rate for 2024–2025, slightly above the district’s 90.9% and well above Washington’s 82.6%. These results suggest that most students are completing high school successfully and that the school’s overall standing has been improving.
Academically, the school’s clearest strength is English Language Arts, where 82.79% of students were proficient in 2025–2026—about 19 percentage points above the district and 30 points above the state. Science proficiency was also above average at 62.7%, exceeding both the district and state, although it declined from 68.89% the previous year. Math is the main area parents may want to examine closely: proficiency rose considerably from 37.56% to 47.2%, but remained below 50% and was slightly lower than the district result. Overall, Steilacoom High combines strong literacy, science, graduation, and ranking outcomes with encouraging math improvement, while science consistency and continued math gains remain important areas to monitor.
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