Summary:
ZIP code 82426 has three schools in Big Horn County School District #3, with a combined enrollment of 447 and reported tested grades spanning 3 through 10. The schools offer different grade spans, so parents can compare each school with state results for the same grades, but not treat their averages as direct, like-for-like rankings. The clearest area-wide concern is math: across the eight reported school-grade results, the average shifted from 7.3 percentage points above the state in 2024–2025 to 5.2 points below it in 2025–2026.
Greybull Middle School stands out in ELA, averaging 62.0% proficient compared with 59.4% for the matching state grades, a 2.6-point advantage; Greybull High School is strongest in math, at 47.5% versus 45.8% statewide. The largest relative concern is Greybull Elementary math: its 51.5% average is 10.1 points below the state average. Individual grades vary sharply there, too: grade 3 math is 66.7%, while grade 4 is 31.3%. At the high school, 10th-grade science is a notable strength at 70.0%, 16.7 points above the state, and the 2024–2025 graduation rate was 96.7% versus 83.1% statewide.
Recent trends are mixed: the overall ELA average moved from 1.1 points below the state to 0.2 points above, largely as elementary ELA improved, while middle- and high-school ELA averages declined. Math moved in the opposite direction, with school results falling as the state average rose. SchoolDigger’s statewide percentile ranks also fell between 2023–2024 and 2025–2026: elementary from 44 to 28, middle from 54 to 39, and high school from 68 to 60; its current ratings are 1, 2, and 3 stars, respectively. For additional context, 2024–2025 student-teacher ratios range from 9.0 at the high school to 12.7 at the middle school; reported free/reduced-lunch eligibility ranges from 54.8% at the middle school to 63.3% at the elementary. These measures describe the schools but do not explain achievement differences.
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