Summary:
ZIP code 53066, covering the Oconomowoc area of Waukesha County, Wisconsin, has six elementary schools serving about 2,150 students: four PK–4 schools in the Oconomowoc Area School District — Meadow View Elementary, Summit Elementary, Park Lawn Elementary, and Greenland Elementary — plus two PK–8 schools, Stone Bank Elementary in the Stone Bank School District and Adeline Montessori School Inc. Because Stone Bank and Adeline test students through grade 8 while the Oconomowoc schools stop at grade 4, their scores are not perfectly comparable.
Stone Bank Elementary is the top-ranked school here, 19th of 1,039 schools in 2025–26 (98th percentile, 5 stars), with strong math across all grades, the highest per-student spending ($16,910), and the lowest student-teacher ratio (11.8). Summit Elementary, Park Lawn Elementary, and Greenland Elementary also land in the top 4% — 43rd, 29th, and 32nd — all with 5 stars. Park Lawn and Greenland are especially notable because they have the highest free/reduced lunch rates in the group (about 20.5–20.9%) yet still rank in the 97th percentile. Greenland reports the lowest chronic absenteeism at 4.1%; Stone Bank's 12.1% is highest here, though still below the state's 17.3%.
Meadow View Elementary (165th, 4 stars) has slipped from 40th in 2023–24 to 165th, and its 4th-grade science proficiency of 59.78% trails the Oconomowoc district's 74.37%, though both top the state. Adeline Montessori School Inc is the most improved school, rising from 938th to 453rd, but shows severe math gaps, including 0% in grade 3 math and 11.11% in grade 4 math. Social studies is a group-wide strength, from Greenland's 92.16% to Meadow View's 73.91%, all far above the state's 65.51%. Every school here exceeds state averages in most subjects, and resources alone don't explain results — Park Lawn and Greenland reach top ranks with lower spending than Summit.
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