Summary:
Zip code 55807 in Duluth, Minnesota contains two high schools serving grades 9–12, both in the Duluth Public School District: Denfeld High School, a large comprehensive high school with 951 students, and Alternative Learning Center SWS Denfeld, a very small program with 57 students. Both are listed at 401 N 44th Ave W, which suggests they share a campus. Denfeld accounts for about 94% of the area's combined 1,008 high school students.
Denfeld has the fuller record and the clearer trend. Its state rank slipped across three years, from 208 of 480 (57th percentile, 3 stars) in 2023–2024 to 306 of 450 (32nd percentile, 2 stars) in 2024–2025, then 354 of 473 (25th percentile, 1 star) in 2025–2026. In 2025–2026, Math proficiency for all grades was 18%, compared with 44.9% in both the district and the state; Reading was 24.3%, against 54.7% district and 48.6% state; Science was 23.2%, versus 33.6% district and 25.5% state. Its 2024–2025 graduation rate of 84.7% was above the district's 80.3% and just under the state's 84.9%, but its dropout rate of 6.6% was double the district's 3.3% and above the state's 4.2%. Student-teacher ratio is 16:1.
The Alternative Learning Center stands out on different measures: free/reduced lunch is 78.95% versus Denfeld's 48.48%, and its student-teacher ratio is 38.7:1 versus 16:1. No test, graduation, or dropout data is listed for it here, so its academic outcomes cannot be compared. The district itself ranks 170 of 458 statewide — 63rd percentile, 3 stars — which sits above Denfeld's recent school-level rank.
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