Winterberry School
Anchorage, AK · Middle School
Winterberry School is a middle school in Anchorage, AK with 253 students enrolled and a 80% proficiency rate. Part of Anchorage School District. NCES data from the U.S. Department of Education.
Winterberry School is a small middle school in Anchorage, AK, serving 253 students in the Anchorage School District. That headcount is below the 460-student average for schools in the district.
On the latest EDFacts assessments, 80% of students reached grade-level proficiency in combined math and reading — a rate near the top of the national distribution. That is 26 points above the 54% average for the Anchorage School District. Against the 49% Alaska statewide average, the school sits 31 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 29 points.
The student-teacher ratio is 18.1 to 1, above the U.S. average of roughly 16 to 1. A relatively low 1% of students qualify for free or reduced-price lunch. It operates as a charter school — publicly funded and tuition-free, under an authorizer-issued charter.
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About This School
Winterberry School is a middle school (charter) located in Anchorage, Alaska. The school serves 253 students. The student-to-teacher ratio is 18.1:1.
According to EDFacts assessment data, 80% of students meet grade-level proficiency standards in combined math and reading.
1% of students qualify for free or reduced-price lunch.
Winterberry School is part of the Anchorage School District in Alaska.
How This School Compares
Winterberry School has 253 students enrolled, making it smaller than the average school in Anchorage School District (460 students). Its 80% proficiency rate is 26 percentage points above the district average of 54%. Compared to the Alaska state average of 49%, the school performs 31 points higher.
Frequently Asked Questions
Winterberry School has 253 students enrolled. The student-to-teacher ratio is 18.1:1.
According to EDFacts data, 80% of students at Winterberry School meet grade-level proficiency standards in combined math and reading assessments.
Winterberry School is part of the Anchorage School District in Anchorage, Alaska. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.