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SCHOOL COMMUNITY·ONALASKA SCHOOL DISTRICT·NCES 551101001449

Pertzsch Elementary

524 Main St, Onalaska, WI 54650 · (608) 783-5644 · La Crosse County
GRADES PK–05ELEMENTARY13-CITYTITLE IREGULAR SCHOOL373 STUDENTS
Enrollment
373
Elementary
DISTRICT 344 · STATE 323
Student : Teacher
13.5:1
28 FTE teachers
DISTRICT 16.1:1 · STATE 14.7:1
Free / Reduced Lunch
45%
168 students
DISTRICT 31% · STATE 42%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
39
Kindergarten
46
Grade 1
52
Grade 2
58
Grade 3
67
Grade 4
52
Grade 5
59
Student demographics
White
25067%
DISTRICT 68% · STATE 65%
Hispanic
246%
DISTRICT 6% · STATE 15%
Black
51%
DISTRICT 2% · STATE 9%
Asian
4813%
DISTRICT 15% · STATE 4%
Two+
4312%
DISTRICT 8% · STATE 6%
Native American
31%
DISTRICT 0% · STATE 1%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
19753%
Female
17647%

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Test scores

Forward Exam 2024-25 . % Meeting or Advanced
English Language Arts
63.2%
WI avg 53.1% . +4.6pp since 2023
Math
72.4%
WI avg 54.8% . -1.1pp since 2023
Source: Forward Exam. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
OUTPERFORMING
Top 10% of WI schools after controlling for student poverty
Actual proficiency
65.6%
composite math + reading, all grades
Predicted
50.0%
based on WI schools with similar FRL share
Beats by
+15.6pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
373
-62 (-14%) vs 2017
Student : Teacher
13.5:1
was 13.6:1
% White
67%
was 77%
% Hispanic
6%
was 2%
% Black
1%
was 3%
% Asian
13%
was 13%
Source: NCES Common Core of Data

About 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

View full county profile
Population
120,488
Census ACS
Median income
$73,013
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
38
14,903 students

Quick facts

School name
Pertzsch Elementary
District
Onalaska School District
Address
524 Main St, Onalaska, WI 54650
Phone
(608) 783-5644
County
La Crosse County
Level
Elementary
Grade range
PK–05
Total enrollment
373
Teachers (FTE)
28
Student–teacher ratio
13.5:1
Free/Reduced lunch
168 (45%)
Locale
13-City: Small
NCES ID
551101001449
Charter school
No
Virtual school
No

Related schools

Other schools in Onalaska School District
Other schools in Onalaska
Nearby schools

Frequently asked questions

About Pertzsch Elementary
How large is Pertzsch Elementary?
Pertzsch Elementary enrolls approximately 373 students in grades PK-05.
What age range does Pertzsch Elementary serve?
Pertzsch Elementary serves students from grade PK through grade 05.
How many students per teacher at Pertzsch Elementary?
Approximately 13.5:1 students per teacher at Pertzsch Elementary.
How diverse is Pertzsch Elementary?
Pertzsch Elementary reports a student body of 67% White, 6% Hispanic, 1% Black, 13% Asian, 12% Two or more.
Is Pertzsch Elementary public or private?
Pertzsch Elementary is a public K-12 school, overseen by Onalaska School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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