Summary:
ZIP code 99026, serving the Nine Mile Falls area of Washington, has one middle school: Lakeside Middle School, which serves grades 6–8 and enrolls 293 students. Its relatively small size may allow for a more personal school environment, although results can also be influenced more noticeably by the performance of individual student groups from year to year. About 35% of students qualify for free or reduced-price meals, the student-teacher ratio is 16.4 to 1, and per-student spending was reported at $16,383.
Lakeside Middle School performs better than Washington overall in every reported subject for 2025–2026. Proficiency was 55.37% in English language arts, 50.65% in math, and 56.88% in science. Math is a notable strength in sixth and seventh grades, where proficiency reached 66.04% and 57.14%, respectively—well above state results. English language arts is more consistent across grades, ranging from 53.27% to 56.88%, and eighth-grade science also exceeded the state by more than eight percentage points. The main concern is eighth-grade math: only 30.28% of students were proficient, below both the sixth-grade result and the statewide eighth-grade rate.
The school is part of the highly ranked Nine Mile Falls School District, which ranks in the 90th percentile statewide. However, Lakeside trails its district averages in all three all-grade subjects, and its own ranking declined from the 86th percentile in 2023–2024 to the 73rd percentile in 2025–2026. Results also fell year over year, particularly in math and science, although the school remains above state averages and retains a four-star rating. Parents may want to focus especially on eighth-grade math support and ask how the school is responding to recent academic declines.
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