Summary:
West Jefferson District is home to one high school: West Jefferson High School in Terreton, Idaho, serving grades 9 through 12 with 204 students. This small rural school has shown steady improvement over the last decade, climbing from 73rd out of 112 Idaho high schools (2 stars) in 2024–25 to 56th out of 122 (3 stars) in 2025–26, placing it just above the middle of Idaho high schools. That improvement is especially notable given that the West Jefferson District overall is ranked 77th out of 101 districts.
Academically, ELA is the clear strength. In 2025–26 End-of-Course exams, 63.9% of students were proficient in English Language Arts versus the state's 61.3%, and in 2024–25 all-grades ELA proficiency was 59.3% compared to the state's 53.9%. Science, however, lags: proficiency was 38.9% on the 2025–26 End-of-Course exam and 30.5% in 2024–25, both below state averages. The graduation rate of 82.5% matches the state average exactly, while chronic absenteeism sits at just 5.8% — far below the state's 13.8% and the district's 9.1%.
About 52% of students qualify for free/reduced lunch, reflecting moderate economic need, yet the school still posts above-average ELA scores and very strong attendance. Per-student spending is $10,143 with a student–teacher ratio of 14.5, providing a reasonable teacher load. For parents, the key takeaway is that despite the district's lower overall ranking — driven by other schools in the district — West Jefferson High School is a solid, improving school with strengths in literacy and attendance, and with room for growth in science.
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