Summary:
ZIP code 98816, including the Lake Chelan area, has two public high schools serving grades 9–12: Chelan High School and Chelan School of Innovation, both part of the Lake Chelan School District. Together, they enroll 489 students, although Chelan High serves about 90% of them. The schools have similar reported economic profiles, with roughly 62% to 64% of students eligible for free or reduced-price lunch.
Chelan High School offers the most complete and current performance information. Its ranking improved from the 38th percentile in 2024–2025 to the 55th percentile in 2025–2026, rising from two stars to three. English Language Arts is the school’s clearest strength: 57.76% of students were proficient in 2025–2026, above both the district and state. Science was also above the district, while math remained the main concern at 33.62%, below the district and state despite improving by nearly nine percentage points from the prior year. The school’s most recent reported graduation rate was 96.4% in 2023–2024.
Chelan School of Innovation is a much smaller, specialized option with 50 students and a reported student–teacher ratio of 33.3:1, compared with 17.5:1 at Chelan High. In 2024–2025, 75% of its students were proficient in ELA, substantially exceeding district and state results, and its 89% graduation rate was above the state average but below the district’s 95.8%. However, its small enrollment means results can vary significantly, and most 2025–2026 test scores are suppressed rather than reported. Parents comparing the schools should therefore view Chelan High as the larger, more established choice with stronger current data, while treating the School of Innovation’s impressive ELA result as encouraging but limited evidence.
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