Best High Schools in Zip Code 83530

Zip code 83530 is served by a single high school, Grangeville High School, part of the Mountain View School District, serving grades 9 through 12 with an enrollment of 244 students. For parents exploring this area, the picture is one of a small school that strongly outperforms both its district and the state on key academic measures, even as it faces some volatility in rankings and a graduation rate that sits exactly at the statewide average.

Academically, Grangeville is a standout. In the 2024–2025 school year, its English Language Arts proficiency rate reached 82.9%, compared to 49.1% for the district and 53.9% for the state. Science proficiency was similarly impressive at 73.8%, far above the district’s 51.2% and the state’s 42.6%. These scores earned the school a 5-star rating and a rank of 7th in Idaho for that year. However, the most recent 2025–2026 ranking fell to 39th of 122 schools (3 stars), showing how much rankings can swing in a small school. Even with that drop, end-of-course proficiency in both ELA and science remained above district and state averages, suggesting the school’s core academic strength persists. Chronic absenteeism is a bright spot at 12.5%, lower than both the district (15.6%) and state (13.8%), and likely supports the strong test performance.

For parents, there are a few practical considerations. The graduation rate of 82.5% matches the district and state exactly, which may be a data artifact but still indicates room for improvement in on-time graduation. About 32% of students qualify for free or reduced-price lunch, and the school maintains a reasonable student-teacher ratio of 15.3 to 1. Per-student spending of $14,997 comes from 2018–2019 data, so it should be viewed cautiously. Notably, while Grangeville High School has earned high marks recently, the Mountain View School District as a whole is rated below the state median (2 stars), meaning the high school is outperforming the district’s broader profile. Overall, Grangeville offers strong academics and good attendance in a small-school setting, though its recent ranking dip and average graduation rate are worth watching.