Enrollment
447
Wisconsin · 2024-25 NCES data
High school (grades 9-12) · Lake Mills, WI
Federal NCES profile for Lake Mills High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
The verdict
Lake Mills High earns 54/100 on the Resource Investment Index, with class sizes near the Wisconsin median.
Lake Mills High has class sizes near the Wisconsin median. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Lake Mills High ranks #1 of 3 public schools in Lake Mills, WI.
NCES ID 550771000887 Verify on NCES CCD record →
Enrollment
447
Wisconsin · 2024-25 NCES data
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
14.4:1
vs 14.4:1 Wisconsin avg
+0% vs state
Free-lunch eligible
24.4%
vs 38.5% Wisconsin avg
-37% vs state
How Lake Mills High compares with Wisconsin and U.S. medians
At or below state median
14.4:1 - 0.0 below the Wisconsin state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
Lake Mills High is a mid-sized high school in Lake Mills, Wisconsin, enrolling 447 students.
Class loads run somewhat heavier than typical: 14.4:1 puts it in the larger third of Wisconsin schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 24.4% of students eligible for free meals.
Enrollment of 447 puts it in the larger third of Wisconsin schools by headcount.
Its Resource Investment Index lands in the upper third of 2,202 scored Wisconsin schools.
Against 549 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #166.
Its student body is predominantly White (84% of enrollment) (diversity index 28/100).
On the academic-pipeline side it reports 14 Advanced Placement courses.
Counselor coverage is strong, about 224 students per counselor, inside the American School Counselor Association's recommended 250:1.
11.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Lake Mills Area School District also operates Lake Mills Elementary (613 students) and Lake Mills Middle (413 students) alongside Lake Mills High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Lake Mills High on the metrics families compare, against Wisconsin and U.S. means.
| Metric | This school | vs Wisconsin | Wisconsin avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.4:1 | ▼ 0% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 24.4% | ▼ 37% | 38.5% | 51.7% |
| Enrollment | 447 | top 27% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 83.7% of enrollment.
Simpson diversity index - at 28.1, Lake Mills High is less mixed than the Wisconsin school average of 35.7.
District-wide per-pupil expenditure for Lake Mills Area School District, which includes Lake Mills High.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lake Mills Elementary | Larger | Similar economic need | Similar S:T ratio |
| Lake Mills Middle | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Lake Mills High's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Wisconsin, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Lake Mills High's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Lake Mills High has 447 students enrolled. It is a high school in Lake Mills, WI.
The student-teacher ratio at Lake Mills High is 14.4:1, which is 0% higher than the Wisconsin average of 14.4:1 and 8% lower than the national average of 15.7:1.
24.4% of students at Lake Mills High are eligible for free lunch, compared to the Wisconsin average of 38.5%.
The largest demographic group at Lake Mills High is White at 83.7% of enrollment, in Lake Mills, WI.
Lake Mills High has a Resource Investment Index of 54/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Lake Mills High ranks #1 of 3 public schools in Lake Mills, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lake Mills on the city page.
Lake Mills High earns 54/100 on the Resource Investment Index, with class sizes near the Wisconsin median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Lake Mills High, Lake Mills Area School District also operates Lake Mills Elementary (613 students) and Lake Mills Middle (413 students). See the Lake Mills Area School District district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Lake Mills High, Lake Mills WI.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/lake-mills-high-wi
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