Summary:
Basin School District, located in rural Idaho, is served by a single high school: Idaho City High School, an institution with 126 students spanning grades 7 through 12. Because this is the only high school in the district, its performance directly shapes the district's high school profile, making its results the key focus for understanding local education.
Idaho City High School offers several notable strengths. The student-teacher ratio of 10.9 means relatively small classes and potential for individual attention, and the chronic absenteeism rate of 14.5% is far better than the district's 24.0% and nearly identical to the state's 13.8%. Academically, English Language Arts has historically been the school's strongest subject, reaching 58.3% proficiency in 2024-2025, though it fell sharply to 45.1% in 2025-2026, now below the state average of 54.0%. Math and science proficiency remain challenges, at 31.0% and 30.6% respectively versus state averages of 43.1% and 42.7%, although both subjects saw modest gains from the prior year. Approximately 41% of students qualify for free or reduced-price lunch, and the graduation rate stands at 82.5%.
The school's star rating has fallen from 3 stars in 2023-2024 to 1 star in 2025-2026, with its percentile rank dropping from the 53rd to the 23rd. Given the small enrollment, year-to-year proficiency swings may partly reflect small-sample effects. Math performance also appears to decline as students progress, falling from 34.8% proficiency in 7th grade to 28.6% in 8th grade. Overall, Idaho City High School combines small classes and strong attendance with significant academic struggles in STEM and a concerning one-year ELA decline. Families should monitor future test data closely, as trends for this school are highly volatile.
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