Summary:
Zip code 53029, which covers Hartland, Wisconsin, is home to 8 schools serving about 4,814 students: one high school, two middle schools, and five elementary schools, spread across five districts. Every district here is rated 5 stars and ranks in at least the 94th percentile among Wisconsin districts. Arrowhead Union High School School District ranks #5 of 432, Merton Community School District is #3, Lake Country School District is #7, Swallow School District is #1, and Hartland-Lakeside J3 School District is #28. Six of the seven currently ranked schools hold 5-star ratings.
Swallow Elementary is the strongest all-around profile in the ZIP: #5 of 1,039 elementary schools, the lowest chronic absenteeism at 2.5%, the lowest free/reduced-price lunch rate at 2.78%, and 2025–26 test averages around 89.4% proficiency. Lake Country School ranks #17 of 1,039 despite having the highest student/teacher ratio (17.2) and the highest absenteeism (11.5%) in the group, and its 3rd-grade math proficiency reaches 100%. Merton Primary ranks #14 of 1,039 while spending the least per student ($12,082), and Merton Intermediate ranks #6 of 643 middle schools. Arrowhead High, the largest school at 1,950 students, ranks #7 of 533 high schools with a 98.1% graduation rate and 0.0% dropout rate.
Among the rest, North Shore Middle ranks #12 of 643 middle schools and posts strong scores while serving the highest free/reduced-price lunch population in the ZIP (15.82%). South Elementary is the relative laggard — #160 of 1,039, 4 stars, with a rank trend of #105 → #139 → #160 — though its scores still beat state averages, just by thinner margins. North Elementary serves PK–2 and has no current test data, which reflects grade-level coverage rather than a weakness. Every school beats the state in every reported test, and every school's chronic absenteeism is below the state's 17.3%. Spending, class size, and outcomes do not move together here: the highest-spending and lowest-spending schools both perform at very high levels.
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