Pertzsch Elementary
School pathway
Test scores
Forward Exam 2024-25 . % Meeting or AdvancedWhat this means: On the Forward Exam, Wisconsin's statewide test, about 63 of every 100 students at this school read and write at grade level and about 72 of 100 do math at grade level. Across all Wisconsin schools, those numbers are about 53 and 55. Reading and writing scores are up about 5 points since 2023, while math scores are down about 1 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 66% of students here test proficient in math and reading, well above the roughly 50% typical for Wisconsin schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 16 points, placing it in Wisconsin's top 10%.
7-year change
SY 2017-18 vs SY 2024-25About Pertzsch Elementary
Located at 524 Main St, in Onalaska, Wisconsin, Pertzsch Elementary is a medium-sized K-5 school that serves 373 students (grades pre-K through 5), run under Onalaska School District.
Onalaska School District runs 6 schools in total, collectively educating 2,920 students. Pertzsch Elementary is one of those campuses.
On demographics, Pertzsch Elementary reports that 67% of the student body identifies as White; the rest consists of 13% Asian, 12% multiracial, 6% Hispanic. The wider county runs roughly 88% White, putting the school's mix considerably less White than the area baseline.
Looking at the economic backdrop, The school employs 28 full-time-equivalent teachers, for a student-teacher ratio near 13.5:1. Statewide, the average ratio sits near 14.7:1, putting Pertzsch Elementary tighter than the state norm the norm. Roughly 45% of students at Pertzsch Elementary qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, La Crosse County runs at roughly 35%, so the school's eligibility rate is meaningfully above the surrounding baseline.
With demographic context factored in, Pertzsch Elementary ranks in the top 10% of Wisconsin public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 50.0%; Pertzsch Elementary posts 65.6%, +15.6 points above that line.
Across the wider county, census data for La Crosse County shows the typical household earns roughly $73,013 per year, about 37% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 5%. Across La Crosse County's 38 public schools (combined enrollment of about 14,903 students), Pertzsch Elementary is one campus in the mix.
Nearest neighbor: Onalaska High, around 0.5 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Pertzsch Elementary ranks 2nd on composite proficiency, higher than the local average of 48.1%.
Pertzsch Elementary operates from a high-density location.
Five-year trend. Looking back 7 years, enrollment at Pertzsch Elementary has edged down 14%, going from 435 students in 2018 to 373 in 2025. The White share of enrollment edged down from 77% to 67% over that span.
Within the allk12 community for this school, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.
La Crosse County at a glance
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