Summary:
Zip code 83450 in Terreton, Idaho, is served by a single elementary school, Terreton Elementary School, part of the West Jefferson District, which enrolls 296 students in grades PK–6. With nearly 60% of students eligible for free/reduced lunch, Terreton serves a predominantly low-income population, and its student-teacher ratio of 21.8 is relatively high. Despite these challenges, the school has shown notable progress: its state ranking jumped from the 10th percentile in 2024–2025 to the 27th percentile in 2025–2026, though it still holds a 1-star rating and ranks 254th out of 346 Idaho elementary schools.
The school's clearest academic strength is math. All-grades math proficiency rose from 36.7% to 44.4% year over year, now slightly above the state average of 43.1% and well ahead of the district's 36.8%. English Language Arts is a concern, with proficiency essentially flat at 36.1% — about 18 points below the state's 54.0% — though 5th and 6th grade ELA scores (40.4% and 44.4%) are stronger than the schoolwide average. Science is the weakest subject: all-grades science proficiency was just 21.6% in 2024–2025, far below the state's 42.6%, and 5th-grade science improved to 34.0% but remains 10 points below the state.
Chronic absenteeism at Terreton is 10.8%, better than the state average of 13.8% but higher than the district's 9.1%. The most recent per-student spending figure is $10,253 from 2018–2019, making it difficult to assess current resource levels. Overall, Terreton Elementary School is a high-poverty school demonstrating real gains in math and an improving state ranking, but ELA and science proficiency remain significant gaps. Parents should view the math improvement as a positive signal while recognizing that reading and science scores, along with class sizes and absenteeism relative to the district, deserve attention.
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