Summary:
ZIP code 66021 has one listed school, Edgerton Elementary, serving prekindergarten through grade 4 with 133 students, in the Gardner Edgerton district. With just one school, there is no local school-to-school comparison. In 2025–26, all-grades proficiency was 89% in English language arts (ELA) and 84% in mathematics, compared with 46% and 41% statewide and 49% and 47% districtwide. The clearest finding is that the school was about 43 percentage points above state proficiency in both subjects.
Edgerton Elementary is the only school in the ZIP code, so there is no separate local top or bottom performer. Its results were strong across the reported grades, though mathematics varied more by grade: grade 3 proficiency was 89%, versus 76% in grade 4; those rates were 46 and 32 points above state results, respectively. ELA results were more even, at 89% in grade 3 and 88% in grade 4. SchoolDigger ranked the school 3rd of 657 statewide in 2025–26 and gave it five stars.
Proficiency and statewide rank both improved over the years reported. From 2024–25 to 2025–26, ELA proficiency rose 12 percentage points, from 76% to 89%, and mathematics rose 10 points, from 74% to 84%; the school’s advantage over the state grew from 32 to 43 points in ELA and from 35 to 43 points in mathematics. SchoolDigger’s rank improved from 55th of 653 in 2023–24 to 17th of 656 in 2024–25 and 3rd of 657 in 2025–26. Reported chronic absenteeism was 7% in 2025–26, below the district’s 13% and the state’s 18%. Other context figures include a student–teacher ratio of 8.9 and a 2024–25 free/reduced-lunch rate of 37%; these describe the school but do not establish what drives its results.
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