Summary:
ZIP code 99116 has two high schools, both operated by the Grand Coulee Dam School District: Lake Roosevelt Junior/Senior High School, serving grades 7–12, and Lake Roosevelt Alternative School, serving grades 9–12. Together they enroll 341 students in this rural area, with the junior/senior high school serving about 90% of them. The district ranks 229th out of 238 Washington districts, or approximately the 4th percentile statewide.
Lake Roosevelt Junior/Senior High School is the larger and more comprehensive option, with 308 students and a 13.5:1 student–teacher ratio. Its 2024–2025 graduation rate was 90%, eight points above the state rate of 82.6%, although its academic proficiency results were much lower than state averages. In 2025–2026, 23.66% of students were proficient in English language arts, 13.08% in math, and 26.32% in science. Math is the clearest area of concern, while science showed the most improvement from the prior year. The school’s ranking remained near the bottom statewide, between the 7th and 11th percentiles in recent years.
Lake Roosevelt Alternative School is much smaller, with 33 students and a 33:1 student–teacher ratio. It reports a higher level of economic need, with 90.91% of students eligible for free or reduced-price lunch. Available historical figures show a 63% graduation rate in 2022–2023 and a 26.3% dropout rate in 2021–2022, but these are not from the same years as the main school’s current figures. Many of its recent test results are suppressed because of the small enrollment, so current academic performance cannot be fully evaluated. Parents comparing the schools should consider their different missions, grade ranges, enrollment sizes, and student populations rather than relying on rankings alone.
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