Best High Schools in Zip Code 99588

Zip code 99588 contains exactly one high school, Glennallen Junior/Senior High School, which serves grades 6 through 12 with 86 students in the small, rural community of Glennallen, Alaska, as part of the Copper River School District. With only about 12 students per grade across seven grade levels, this is a very small combined middle and high school. The school has an 11:1 student-teacher ratio and per-pupil spending of $26,051, a common pattern for remote Alaska districts where fixed costs are spread across very few students.

The school's most striking feature is its recent improvement in statewide ranking, jumping from 1 star and 50th place in 2022-2023 to 4 stars and 16th out of 60 Alaska high schools in 2024-2025. In 2025-2026, science proficiency reached 45.45 percent, well above the state average of 37.81 percent, while ELA was roughly average at 31.82 percent versus 32.89 percent statewide. Math is the most persistent concern at 25 percent proficiency, compared to 32.20 percent statewide and 31.06 percent in the district. The 2024-2025 graduation rate of 78.9 percent is 11.3 percentage points above the district's 67.6 percent.

Small enrollments make test results volatile, and science proficiency swung from 17.39 percent to 45.45 percent in just one year. Grade-level ELA in 2025-2026 shows a possible decline by grade: 42.86 percent in 6th grade, 38.46 percent in 7th, and 27.27 percent in 9th. The reported free and reduced lunch rate of 113.95 percent, while above 100 percent and likely reflecting a reporting artifact, strongly suggests nearly all students come from low-income households. While the 4-star state ranking is encouraging, proficiency scores do not fully match that ranking, since rankings incorporate growth, graduation rates, and other measures. In short, this is a small, high-poverty rural school with promising recent signals in science and graduation rates, but math and upper-grade ELA need attention.