Summary:
Carbonado School District in Washington serves students through a single school, Carbonado Historical School 19, an elementary-classified school covering grades K–8 with 176 students. Because the district has just one school, district and school results are identical wherever both are reported. The Carbonado School District ranks 36th of 238 Washington districts — the 85th percentile — with a 4-star rating.
Academically, the school beat the state in English Language Arts, Math, and Science in both 2025–2026 and 2024–2025. ELA was 66.12% proficient versus 52.81% statewide, holding a steady +13.31 point advantage across both years. Math was 60.33% versus 43.11%, and Science 55.26% versus 50.95%; both slipped from the prior year, with Science narrowing its edge over the state from +20.62 to +4.31 points. The strongest grade-level results are 7th grade Math (78.57% vs. 41.31%) and 7th grade ELA (71.43% vs. 53.23%). The clearest watch area is 8th grade ELA at 28.57% versus 50.90% statewide; 8th grade Science was also slightly below state. ELA and Math results for grades 3, 4, and 6 are suppressed under state privacy rules, so those figures are unknown rather than zero.
The school earned 4 stars in each of the last three reported years, though it dipped from the 81st percentile in 2024–2025 to the 75th percentile in 2025–2026 — still in the top quartile. About 34.66% of students qualified for free or reduced lunch in 2024–2025, per-student spending was $18,856 in 2023–2024, and the student-teacher ratio was 13.8. With only 176 students, grade-level percentages rest on small cohorts, so a change of one or two students can swing results.
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