Summary:
Zip code 53115 has two high schools, both serving grades 9–12 and both part of the Delavan-Darien School District: Delavan-Darien High with 511 students and Delavan Darien Technical School Inc with 93 students. They share the same listed address at 150 Cummings St in Delavan, Wisconsin, and enroll 604 high schoolers combined; Delavan-Darien High is about 5.5 times larger. The district overall ranks 412 of 432 districts in the state, in the 5th percentile with 0 stars.
Delavan-Darien High is the larger, stronger-performing school. It ranks 418 of 533 (22nd percentile, 1 star), graduates 96.8% of students — above the district's 96.5% and the state's 92.0% — and has a 0.1% dropout rate. Chronic absenteeism is 17.5%, close to the state's 17.3% but above the district's 13.1%. About 54.21% of students qualify for free/reduced lunch, per-student spending is $19,628, and the student-teacher ratio is 13.5. In 2025–2026 testing it beat the district in all four subjects but trailed the state in every one: Social Studies 43.01% (state 48.25%), ELA 29.08% (state 48.47%), Math 28.37% (state 42.93%), and Science 28.37% (state 43.2%).
Delavan Darien Technical School Inc stands out for attendance and completion but has large academic gaps. It ranks 493 of 533 (8th percentile, 0 stars), graduates 93.3% (above the state, below the district), and has a 0.0% dropout rate with the lowest chronic absenteeism at 11.5%, below both the district (13.1%) and state (17.3%). Free/reduced lunch is 56.99%, per-student spending is $5,950, and the student-teacher ratio is 23.8. Its 2025–2026 proficiency is far below district and state levels: 14.81% in Social Studies, 5.88% in ELA, 11.76% in Math, and 17.65% in Science; its 2024–2025 ACT results are not present in the data. In short, both schools see strong graduation and low dropout, but proficiency is the shared weakness, with the widest gaps, lowest spending, and largest class ratios at the technical school.
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