Summary
Wausau Area Montessori Charter School is a small PK–8 charter school in the Wausau School District, located at 3101 N 13th St in Wausau, WI, with 121 students and a wider grade span than most nearby schools, which are predominantly K–5 elementaries. In 2025–2026 it ranked 353rd of 1,039 Wisconsin schools — the 66th percentile with 3 stars — well above the district's 44th percentile, 2-star standing. It sits near the top of the local Wausau group, behind Rib Mountain Elementary (71st percentile, 4 stars) and Stettin Elementary (68th percentile, 3 stars), but ahead of Riverview Elementary, Maine Elementary, Thomas Jefferson Elementary, Franklin Elementary, John Marshall Elementary, and G D Jones Elementary.
English language arts, social studies, and science are the academic bright spots. In 2025–2026, ELA proficiency beat both district and state in grades 3, 4, and 6, with 4th grade at 72.73%. Fourth-grade social studies reached 86.36% and science 72.73% — far above district and state, and the highest social studies result reported among nearby schools. Math is more uneven: 3rd grade was excellent at 84.62%, but grades 4, 5, and 6 came in below state levels at 45.45%, 40.00%, and 44.44%. Because the school is small with single-class cohorts, one year's numbers can swing sharply, so multi-year patterns are more trustworthy than any single result.
Subgroup results stand out for female students (93rd percentile, 5 stars) and low-income students (88th percentile, 4 stars), while male students ranked at the 50th percentile. Chronic absenteeism climbed to 17.5% in 2024–2025, up from 9.0% the year before and above the district's 15.2% — notably higher than Rib Mountain Elementary (6.3%) and Stettin Elementary (10.8%). The school spends $12,314 per student with a 16.9 student-teacher ratio — less spending and larger classes than most nearby schools — yet still produces above-district results.
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