Summary:
ZIP code 99159 contains one high school, Odessa High School, serving grades 7–12 in the small, rural community of Odessa through the Odessa School District. The school enrolls 103 students, has a 12.2-to-1 student-teacher ratio, and reported $25,650 in spending per student in 2023–2024. Because it is the only high school in the ZIP code, there are no local school-to-school comparisons; the most useful benchmarks are the district and Washington state.
The school’s academic results are mixed, with science standing out as its strongest area. In 2024–2025, 70.37% of students were proficient in science, exceeding the district by 18.37 percentage points and the state by 20.99 points. Science declined to 50.00% in 2025–2026 but remained slightly above the district and close to the state average. Mathematics is the most consistent area for improvement: proficiency was about 37% in both years, roughly five points below the state average. English language arts was near the state average in 2024–2025, at 51.16%, but fell to 42.22% in 2025–2026.
Results vary considerably by grade, which is common in a small school where individual students can strongly affect percentages. Seventh-grade ELA was above the state average, while eighth-grade ELA was substantially lower, at 26.67% compared with 50.90% statewide. Eighth-grade math was a relative strength, and tenth-grade math was nearly equal to the state. Some grade-level results are suppressed because of small group sizes and should not be interpreted as zero. The school’s historical 2018–2019 graduation rate was 87.5%, with a 0.0% dropout rate, but current school-specific graduation and dropout figures are not provided. Overall, parents should expect a small-school setting with potentially individualized attention, strong science performance, and uneven outcomes that deserve review by subject and grade.
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