Very Good
#366 of 1,280 schools in IA
Top 29% in state
Lake Mills Senior High School
High School · Lake Mills Comm School District · Lake Mills, IA
A Lake Mills Comm School District high school serving grades 9th – 12th.
102 S 4th Ave E, Lake Mills, IA 50450
- Math 74% vs IA 67% (2025)
- Reading 83% vs IA 74% (2025)
- 90%+ 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Lake Mills Senior High School score 78% proficient, which is above what's typical for similar communities (expected: 77%).
2025 ISASP proficiency
Most recent published year. School vs. IA average.
Trend
→ SteadyProficiency is down 6 points across the 17-year record (2009–2025) and has held near 79% recently.
Show all 15 years
Multi-year averages used by the rating model: math 81% (multi-year average, 2009-2025) · reading/ELA 83% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 35 test records from IA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
31.9%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Lake Mills Senior High School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 49Car-Dependent
- Bike 48Somewhat Bikeable
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Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$76,522
Median home value
$157,500
Median rent
$640/mo
College educated
18.5%
Homeownership
74.1%
Poverty rate
10.8%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 50450; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
0 from verified nearby records
No verified same-level alternatives
The available nearby set has no same-level school with a verified grade span.
Lake Mills Comm School District
- Schools in district
- 3
- Rank in district
- #2 of 3
- District spending per student
- $12,708NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 12.0%Census SAIPE · 2024
Lake Mills Senior High School is listed in Lake Mills Comm School District; a district label does not verify attendance for an address.
About Lake Mills Senior High School
Lake Mills Senior High School is a public high school in Lake Mills, IA, part of Lake Mills Comm School District, serving approximately 213 students in grades 9th-12th with a 11.2:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #366 of 1,280 schools in IA. State assessment records show 81% math proficiency (multi-year average, 2009-2025) and 83% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Lake Mills Senior High School
What grades does Lake Mills Senior High School serve?
Lake Mills Senior High School serves students in grades 9th through 12th.
How many students attend Lake Mills Senior High School?
Lake Mills Senior High School has an enrollment of approximately 213 students.
What is the student-teacher ratio at Lake Mills Senior High School?
The student-teacher ratio at Lake Mills Senior High School is 11.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Lake Mills Senior High School rank in IA?
Lake Mills Senior High School ranks #366 of 1,280 schools in IA.
What is Lake Mills Senior High School's MySchoolScout rating?
Lake Mills Senior High School has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Lake Mills Senior High School?
Based on loaded state assessment records, Lake Mills Senior High School has 81% math proficiency (multi-year average, 2009-2025) and 83% reading/ELA proficiency (multi-year average, 2009-2025).
Is Lake Mills Senior High School a charter school?
No, Lake Mills Senior High School is not a charter school. It is a traditional public school operated by the local school district.
Is Lake Mills Senior High School a Title I school?
No, Lake Mills Senior High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Lake Mills Senior High School?
31.9% of students at Lake Mills Senior High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 213
- Student-Teacher Ratio
- 11.2:1
- Teachers (FTE)
- 19
- Type
- regular
- Setting
- Remote Rural
- County
- Winnebago County
- Chronic Absenteeism (SY 2022-23)
- 22.1%
- Phone
- (641) 592-0893
- 4-Year Graduation
- 90%+
- Area population (ZIP 50450)
- 3,001
- Area median age
- 45.5
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 ISASP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 ISASP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 ISASP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 ISASP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 50450; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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