Summary:
Arlington School District has three high schools serving grades 9–12 in the Arlington area: Arlington High School, Weston High School, and Arlington Open Doors. Together they enroll 1,821 students, although Arlington High School serves more than 90% of them. The district ranks 76th of 238 Washington districts, placing it around the 68th percentile, with a three-star rating.
Arlington High School is the district’s main comprehensive high school and has the strongest overall results. Its 2025–2026 proficiency rates were 70.13% in English language arts, 37.47% in math, and 59.42% in science. ELA and science were well above state averages, while math remained below both district and state levels. The school’s 90.5% graduation rate and 6.5% dropout rate were better than district and state comparisons. Academic results also improved in all three subjects from the previous year, and the school’s latest ranking rose to the 78th percentile. For families seeking a traditional high school experience, Arlington High offers the broadest enrollment and strongest reported outcomes, with math as the clearest area for continued improvement.
Weston High School is much smaller, with 107 students, a 9.7-to-1 student-teacher ratio, and higher spending per student, but its outcomes are weaker: 41.18% were proficient in ELA, and its 2024–2025 graduation rate was 68%. Current math and science results are suppressed because of the small tested population. Arlington Open Doors, with 64 students, appears to serve a different or alternative student population. Its 14.2% graduation rate and 31.4% dropout rate indicate significant challenges, but these figures should not be compared directly with a conventional high school without considering its program mission and student needs.
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