Total enrollment
12,422
+200 (+2%) vs SY 2020-21
Ozaukee County
Wisconsin · Public K-12
Ozaukee County serves about 12,422 K-12 students across 26 public schools, an average of roughly 478 students per school. By level, that breaks down as 14 elementary, 6 middle, and 5 high schools.
4-year change in Ozaukee County
SY 2020-21 vs SY 2024-25School count
26
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Ozaukee County ranks
Among counties| Measure | This county | In Wisconsin | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 72.4% | #1 of 67 | N/A |
| Enrollment ranked largest first | 12,422 | #18 of 70 | #695 of 2,745 |
| Number of schools ranked most first | 26 | #28 of 70 | N/A |
| Students per teacher ranked fewest first | 14.8:1 | #65 of 70 | #1,709 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 15.6% | #70 of 70 | #2,519 of 2,526 |
| Diversity index ranked most diverse first | 32.0% | #35 of 70 | #1,732 of 2,707 |
Counties need at least 3 schools and 1,000 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Ozaukee County school rankings
Residents
92,966
all ages · ACS 5-yr
Schools
26
5 districts
Enrollment
12,422
students · NCES CCD
Median income
$96,996
Above Wisconsin avg
Free/reduced lunch
15.6%
Below Wisconsin avg
Elementary
14
5,325 students
Middle
6
2,748 students
High
5
4,012 students
Combined / other
1
337 students
LARGEST DISTRICT
Mequon-Thiensville School District
3,553 students · 5 districts in Ozaukee County
County vs. school enrollment demographics
Left bar is the racial makeup of Ozaukee County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
51.2%
adults 25+
Poverty rate
3.1%
ACS 5-year
Unemployment
2.8%
civilian labor
Median age
44
20.9% under 18
Test scores in Ozaukee County
Latest 2024-25 ELA proficiency, 20 schools ranked. Wisconsin state average: 53.1%.
Top 5 schools (ELA)
- Parkview Elementary· 87.4%
- Webster Middle· 84.0%
- Thorson Elementary· 83.4%
- Westlawn Elementary· 82.0%
- Dunwiddie Elementary· 81.0%
Lowest 5 schools (ELA)
- Wisconsin Virtual Learning· 52.6%
- Thomas Jefferson Middle· 62.6%
- Ozaukee Elementary· 64.3%
- Saukville Elementary· 68.0%
- Ozaukee Middle· 69.0%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Homestead High | Mequon | High | 09-12 | 1,204 | · |
| Cedarburg High | Cedarburg | High | 09-12 | 1,073 | · |
| Port Washington High | Port Washington | High | 09-12 | 809 | · |
| Grafton High | Grafton | High | 09-12 | 727 | · |
| Webster Middle | Cedarburg | Middle | 06-08 | 692 | · |
| Thomas Jefferson Middle | Port Washington | Middle | 05-08 | 677 | · |
| Wilson Elementary | Mequon | Elementary | PK-05 | 558 | · |
| Donges Bay Elementary | Mequon | Elementary | PK-05 | 539 | · |
| Thorson Elementary | Cedarburg | Elementary | PK-05 | 529 | · |
| Kennedy Elementary | Grafton | Elementary | PK-05 | 507 | · |
| Woodview Elementary | Grafton | Elementary | PK-05 | 506 | · |
| Parkview Elementary | Cedarburg | Elementary | PK-05 | 504 | · |
| Oriole Lane Elementary | Mequon | Elementary | PK-05 | 499 | · |
| John Long Middle | Grafton | Middle | 06-08 | 452 | · |
| Steffen Middle | Mequon | Middle | 06-08 | 418 | · |
| Ozaukee Elementary | Fredonia | Elementary | PK-05 | 344 | · |
| Wisconsin Virtual Learning | Fredonia | Combined | PK-12 | 337 | · |
| Lake Shore Middle | Mequon | Middle | 06-08 | 335 | · |
| Dunwiddie Elementary | Port Washington | Elementary | PK-04 | 324 | · |
| Saukville Elementary | Saukville | Elementary | PK-04 | 303 | · |
| Lincoln Elementary | Port Washington | Elementary | PK-04 | 302 | · |
| Westlawn Elementary | Cedarburg | Elementary | PK-05 | 297 | · |
| Ozaukee High | Fredonia | High | 09-12 | 199 | · |
| Ozaukee Middle | Fredonia | Middle | 06-08 | 174 | · |
| Sugar Maple Nature School | Saukville | Elementary | KG-06 | 100 | · |
| Early Childhood | Cedarburg | Elementary | PK-PK | 13 | · |
Cities in Ozaukee County
About Ozaukee County
Ozaukee County is an average-sized county of about 92,966 residents in Wisconsin. Its public-school system hosts approximately 12,422 students across 26 schools.
Zooming out, census numbers show median household income runs near $96,996, 51% of adults hold a bachelor's degree or higher, and the federal-poverty share is near 3%. That income level is 32% higher than the Wisconsin median.
Looking at the level breakdown, Ozaukee County consists of 14 elementary schools (5,325 students), 6 middle schools (2,748), 5 high schools (4,012), and 1 combined or other schools.
Mequon-Thiensville School District is the biggest district by enrollment, covering about 3,553 students across Ozaukee County.
Trend over the past 4 years. Combined enrollment now sits at 12,422 students, held roughly steady from the 12,222 reported in SY 2020-21.
In the discussion threads here, the community for Ozaukee County discusses school events, board meetings, and seasonal calendars. Parents, students, and educators in the area can post or comment.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data