Summary:
ZIP code 53813 in Lancaster, Wisconsin is served by a single public high school: Lancaster High, which enrolls 325 students in grades 9–12 and belongs to the Lancaster Community School District. Because there is only one high school in this area, there are no local school-to-school comparisons to make — the most useful benchmarks are the school's own history, its district, and Wisconsin statewide averages. The district itself is ranked 111 of 432 in the state, placing it in the 74th percentile with 4 stars.
Completion outcomes are the clearest strength. Lancaster High reports a 95.2% graduation rate, above Wisconsin's 92.0%, and a 0.9% dropout rate that is lower than both the district's 1.0% and the state's 1.1%, suggesting students who reach high school generally finish. ACT results have also been strong: in 2024–2025 the school was well above the state in English language arts (+9.84 points), mathematics (+9.58) and science (+7.35), and in 2025–2026 it remained above the state in all three, though by smaller margins of +2.92, +2.90 and +5.41 points. Resource context looks favorable as well, with $16,815 spent per student, a 12.4:1 student-teacher ratio, and 32% of students eligible for free or reduced-price lunch.
There are warning signs worth watching. Every ACT subject declined year over year, with ELA falling the most (-7.07 points), and social studies slipped from 3.65 points above the state to 46.84, which is 1.41 points below the state's 48.25. Chronic absenteeism is a concern at 20.3% — above the district's 12.4% and the state's 17.3%, meaning roughly 1 in 5 students were chronically absent. The school's ranking also weakened, moving from 111 of 431 (74th percentile, 4 stars) to 121 of 431 (72nd percentile, 4 stars) to 212 of 533 (60th percentile, 3 stars).
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