Best Public Schools in Zip Code 99743

Zip code 99743, in the Healy, Alaska area, is home to two schools: Denali PEAK and Tri-Valley School. Both are part of the Denali Borough School District and both are classified as Alternative programs serving pre-K through grade 12, though the area reports no traditional elementary, middle, or high schools. Denali PEAK is far larger, with 882 students (about 84% of the combined enrollment of 1,049), while Tri-Valley School enrolls 167 students.

For parents comparing the two, Tri-Valley School shows the stronger academic profile in most subjects. Its 2024–2025 graduation rate was 86.6%, above Denali PEAK (82.2%) and the district (81.4%). In 2025–2026, Tri-Valley posted 73.33% science proficiency versus 38.46% at Denali PEAK, and 46.58% math proficiency versus 33.02% at Denali PEAK. Tri-Valley also has a much more favorable student-teacher ratio of 10.1 compared to Denali PEAK's reported 158.9, and per-pupil spending is about 4.7 times higher ($24,256 versus $5,122).

That said, Denali PEAK is not without strengths. Its 2025–2026 English language arts proficiency was 39.52%, slightly above Tri-Valley School (37.84%) and well above the state average (32.89%). Denali PEAK's 9th-grade math proficiency (43.33%) far exceeded the state's 17.91%. Both schools outperform Alaska's state averages in all-grade science, ELA, and math for 2025–2026. However, results can swing sharply from year to year, as seen in Tri-Valley's ELA proficiency dropping from 51.28% to 37.84% and Denali PEAK declining across all three subjects. Because free/reduced-price lunch data is not reported for either school, parents cannot use economic data to interpret these outcomes.