Summary:
ZIP code 99166 has one high school, Republic Senior High School, serving grades 9–12 in the rural Republic area of northeastern Washington. The school enrolls 103 students, making it a small high school where yearly results can change noticeably depending on the performance of a relatively small number of students. About 65.05% of students qualify for free or reduced-price lunch, indicating that the school serves many families who may benefit from additional academic and support resources.
The school’s clearest strength is English language arts. In 2025–2026, 65.71% of students were proficient, compared with 37.37% in the Republic School District and 52.81% statewide. ELA also improved slightly from 63.64% the previous year. Graduation results are comparatively encouraging: the 2024–2025 graduation rate was 82.0%, matching the district and coming close to Washington’s 82.6%. The school also reported a 4.0% dropout rate in 2021–2022, although that figure is from an earlier year than the available state comparison.
The main concern is recent performance in math and science. Math proficiency fell from 45.45% in 2024–2025 to 24.24% in 2025–2026, while science declined from 46.67% to 26.32%. The latest math result was below the state’s 43.11%, and science was below both the district’s 33.33% and the state’s 50.95%. Families should view these sharp one-year declines cautiously because small-school results can be affected by class size, student cohorts, testing participation, staffing, and course offerings. Still, the pattern suggests that STEM instruction deserves close attention. The school’s ranking also declined from 157th of 438 schools to 251st of 396, and its rating fell from three stars to two, reinforcing the need to monitor whether the latest academic weakness continues.
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