Summary:
Zip code 83214 is home to exactly one high school, Marsh Valley High School, which serves grades 9–12 in Arimo, Idaho, with an enrollment of 303 students. As the only high school in the area, it serves as the central educational option for local families, and all comparisons must be made against district and state averages rather than other nearby schools.
Marsh Valley High School has shown meaningful progress in recent years, moving from a 1-star rating in 2023–2024 to a 2-star rating in 2025–2026, with its state rank improving from 123rd to 72nd out of 122 schools (41st percentile). The school posts respectable English Language Arts proficiency (55.1% vs. 54.0% statewide) and strong End-of-Course math results (40.0% vs. 33.1% statewide), but science proficiency lags notably behind the state (34.9% vs. 42.7% overall; 33.3% vs. 41.2% on End-of-Course). Its graduation rate of 82.5% exactly matches the state average, while chronic absenteeism is a concern at 19.3%, well above the 13.8% state average. The district, Marsh Valley Joint District, is ranked in the top quartile of Idaho districts (25th of 101, 4 stars), which contrasts with the high school’s more modest percentile ranking, suggesting that other grade levels or schools drive the district’s strong reputation.
Academic performance is uneven across subjects, with one-year math and science proficiency scores jumping dramatically (math from 19.4% to 40.4%, science from 20.6% to 34.9%), though it is unclear whether this reflects real gains, cohort changes, or testing adjustments. About 22% of students qualify for free or reduced lunch, and spending per student is approximately $8,519 (from 2018–2019). For parents, Marsh Valley High School offers a small, rural environment with solid ELA and end-of-course math performance, but attention should be paid to attendance and science achievement as the school continues to improve.
Thank you for your feedback!