Lake Mills Middle School
School pathway
Test scores
ISASP 2024-25 . % ProficientWhat this means: On the ISASP, Iowa's statewide test, about 89 of every 100 students at this school read and write at grade level and about 81 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are up about 5 points since 2023, while math scores are up about 3 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 82% of students here test proficient in math and reading, well above the roughly 72% typical for Iowa 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 10 points, placing it in Iowa's top 10%.
7-year change
SY 2017-18 vs SY 2024-25About Lake Mills Middle School
Located at 102 S 4th Ave E, in Lake Mills, Iowa, Lake Mills Middle School is a rural-scale junior high that caters to 146 students (grades 6 through 8), one of the schools within Lake Mills Comm School District. By comparison, Iowa's public schools average about 400 students each, so Lake Mills Middle School sits 64% leaner than that benchmark.
Across the 3 schools in Lake Mills Comm School District (642 students total), Lake Mills Middle School accounts for its share of the district's footprint.
On demographics, Lake Mills Middle School shows that nearly all students (80%) are White; the rest consists of 14% Hispanic, 4% multiracial, 2% Black. That is noticeably less White than the county at large, where the share is closer to 89%.
On the resource side, On paper, Lake Mills Middle School has 6 full-time-equivalent teachers, translating to a class-load average of around 25.6:1. The state averages around 15.2:1, so this campus is higher than the state norm typical. About 39% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.
After controlling for student poverty, Lake Mills Middle School ranks in the top 10% of Iowa public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 72.4%; Lake Mills Middle School posts 82.1%, +9.7 points above that line.
In the area at large, census data for Winnebago County shows the typical household earns roughly $67,642 per year, 26% of adults hold a bachelor's degree or higher, and roughly 9% of residents live below the federal poverty line. Lake Mills Middle School is one of 9 public schools in Winnebago County (combined enrollment of about 2,190 students).
The closest other public school is Lake Mills Senior High School, roughly 0.0 miles away. Within five miles, there are 2 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Lake Mills Middle School ranks 2nd on composite proficiency, ahead of the local average of 77.5%.
The school occupies a rural site.
Over the past 7-year window. Looking back 7 years, enrollment at Lake Mills Middle School has ticked up 5%, going from 139 students in 2018 to 146 in 2025. White enrollment moved from 91% to 80% across the same window. The student-to-teacher ratio loosened from 20.2:1 in 2018 to 25.6:1 today.
On allk12, the page collects discussion, questions, and updates around open house dates, ride-share offers, and field-trip permission slips. Posting is open to anyone connected to the school.
Winnebago County at a glance
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Related schools
- Lake Mills Elementary SchoolElementary · 303 students
- Lake Mills Senior High SchoolHigh · 193 students
- Lake Mills Elementary SchoolElementary · 303 students
- Lake Mills Senior High SchoolHigh · 193 students
- Lake Mills Senior High School0.0 mi · 193
- Lake Mills Elementary School0.0 mi · 303
- Forest City Middle School11.9 mi · 330
- Forest City High School11.9 mi · 304
- Forest City Elementary School12.1 mi · 448
- Northwood-Kensett Middle/High School15.7 mi · 265