1
Enrollment
447
High
DISTRICT 491 · STATE 475
SCHOOL COMMUNITY·LAKE MILLS AREA SCHOOL DISTRICT·NCES 550771000887
Lake Mills High
615 Catlin Dr, Lake Mills, WI 53551 · (920) 648-2355 · Jefferson County
GRADES 09–12HIGH32-TOWNREGULAR SCHOOL447 STUDENTS
·
allk12 Grade
Not graded
This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work
Student : Teacher
13.8:1
33 FTE teachers
DISTRICT 13.5:1 · STATE 14.6:1
Free / Reduced Lunch
25%
113 students
DISTRICT 25% · STATE 42%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 99 | 22% |
| Grade 10 | 103 | 23% |
| Grade 11 | 124 | 28% |
| Grade 12 | 121 | 27% |
Student demographics
28%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 28% · STATE 54% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Lake Mills Area School District. Attendance zones can vary; confirm enrollment with the district.
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
64.4%
composite math + reading, all grades
Predicted
62.1%
based on WI schools with similar FRL share
Beats by
+2.3pp
above demographic expectation
What this means: About 64% of students here test proficient in math and reading, compared with the roughly 62% typical for Wisconsin schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Wisconsin's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Lake Mills High
Lake Mills High's state test result (64.4% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Lake Mills High this school | 447 | 25.3% | 64.4% |
| Evansville High Evansville | 497 | 21.9% | 40.0% |
| Lomira High Lomira | 300 | 26.7% | 60.8% |
| Chilton High Chilton | 380 | 30.3% | 44.5% |
| Columbus High Columbus | 383 | 21.4% | 46.0% |
| Wrightstown High Wrightstown | 414 | 20.5% | 64.1% |
Matched among Wisconsin high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Lake Mills High ranks
Among high schools| Measure | This school | In Wisconsin | In Jefferson County |
|---|---|---|---|
| State test proficiency ranked highest first | 64.4% | #30 of 402 | #1 of 6 |
| Enrollment ranked largest first | 447 | #192 of 532 | #3 of 6 |
| Students per teacher ranked fewest first | 13.8:1 | #123 of 325 | N/A |
| Diversity index ranked most diverse first | 28.1% | #178 of 325 | N/A |
| Free and reduced lunch ranked highest share first | 25.3% | #311 of 418 | #5 of 6 |
| Enrollment change since 2017-18 ranked fastest growth first | +3.5% | #91 of 128 | N/A |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
447
-43 (-9%) vs 2020
+32% since 1990-91, when it was 338
Student : Teacher
13.8:1
was 16.3:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 447 | 32.5 | 13.8:1 | 25% (113) |
| 2023-24 | 477 | 31.5 | 15.1:1 | 29% (139) |
| 2022-23 | 488 | 31.8 | 15.4:1 | 30% (145) |
| 2020-21 | 490 | 30 | 16.3:1 | 26% (125) |
| 2017-18 | 432 | 28.5 | 15.2:1 | 20% (85) |
| 2015-16 | 411 | 26 | 15.8:1 | 23% (93) |
| 2010-11 | 405 | 27 | 15.0:1 | 20% (81) |
| 2000-01 | 444 | 27 | 16.4:1 | 12% (54) |
| 1990-91 | 338 | 27 | 12.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lake Mills High.
Since 2017-18: students up 3% (432 to 447); teachers up 14% (28.5 to 32.5).
About Lake Mills High
Lake Mills High is a mid-sized high school in Lake Mills, Wisconsin, under Lake Mills Area School District. The school serves grades 9 through 12. Enrollment is 447 students.
In Lake Mills Area School District, 3 schools enroll a combined 1,473 students.
Lake Mills High is 84% White by enrollment. Beyond that, enrollment is 13% Hispanic and 2% multiracial. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 28%.
Teacher count: 32.5 full-time equivalents. Student-to-teacher ratio: 13.8:1. Across high schools in Wisconsin, the average ratio is 14.6:1. Roughly 25% of students come from households that qualify for free or reduced-price lunch. That is 10 points below the 35% average for public schools in Jefferson County.
Lake Mills High's actual average proficiency rate across its state test results (64.4%) and its predicted rate (62.1%) put it outside the top and bottom 10% of Wisconsin schools.
In Jefferson County, where the school is located, the median household earns about $83,750 a year, roughly 29% of adults have a four-year degree or more, and about 5% of residents live below the federal poverty line. Counting Lake Mills High, Jefferson County has 31 public schools.
Straight-line distance to the nearest public school, Lake Mills Middle, is about 0.8 miles. Other public schools within five miles: 2. Ranked by average proficiency, Lake Mills High places 1st out of 9 schools in its immediate area.
The school's federal locale classification is Town: Distant.
Enrollment was 447 in 2024-25. In 2020-21, it was 490. Staffing shifted too: the ratio moved from 16.3:1 to 13.8:1.
People who know Lake Mills High can post here about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.
Jefferson County at a glance
View full county profilePopulation
86,003
Census ACS
Median income
$83,750
Household, ACS
Bachelor's+
29%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
31
9,194 students
Quick facts
Related schools
Other schools in Lake Mills Area School District
- Lake Mills ElementaryElementary · 613 students
- Lake Mills MiddleMiddle · 413 students
Other schools in Lake Mills
- Lake Mills ElementaryElementary · 613 students
- Lake Mills MiddleMiddle · 413 students
Nearby schools
- Lake Mills Middle0.8 mi · 413
- Lake Mills Elementary1.2 mi · 613
- Johnson Creek Public School6.3 mi · 634
- West Elementary6.3 mi · 233
- Jefferson Middle6.5 mi · 349
- Jefferson High6.5 mi · 603
Frequently asked questions
About Lake Mills HighHow many students attend Lake Mills High?
Lake Mills High enrolls approximately 447 students in grades 09-12.
What grades does Lake Mills High serve?
Lake Mills High serves grades 09-12.
What is the student-teacher ratio at Lake Mills High?
The student-to-teacher ratio at Lake Mills High is approximately 13.8:1 (33 FTE teachers).
What is the racial breakdown of students at Lake Mills High?
At Lake Mills High, the student body is approximately 84% White, 13% Hispanic, 0% Black, 0% Asian, 2% Two or more.
Is Lake Mills High public or private?
Lake Mills High is a public K-12 school, overseen by Lake Mills Area School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.