| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Cedarburg School District | Cedarburg | 10/10 Excellent · 99th pct | 3,091 | 6 | PK–12 | 1 |
| Grafton School District | Grafton | 10/10 Excellent · 96th pct | 2,116 | 4 | PK–12 | 1 |
| Mequon-Thiensville School District | Mequon | 10/10 Excellent · 93rd pct | 3,562 | 6 | PK–12 | 2 |
| Cedar Grove-Belgium Area School District | Belgium | 10/10 Excellent · 92nd pct | 910 | 3 | PK–12 | 1 |
| Northern Ozaukee School District | Fredonia | 8/10 Good · 75th pct | 1,117 | 5 | PK–12 | 1 |
| Port Washington-Saukville School District | Port Washington | 8/10 Good · 75th pct | 2,519 | 5 | PK–12 | 2 |
How Ozaukee County compares
Together they enroll 13,315 students across 29 schools. The largest is Mequon-Thiensville School District with 3,562 students. Districts here average 9.3/10, above the Wisconsin average of 5.6/10. Ratings range from 8/10 to 10/10.
School Districts in Ozaukee County, Wisconsin
Ozaukee County has 6 public school districts covering 8 zip codes. The top-rated district in Ozaukee County is Cedarburg School District (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (Forward Exam 2024–25), ranked against all districts in Wisconsin. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.
Frequently Asked Questions
How many school districts are in Ozaukee County, WI?
6 school districts serve zip codes in Ozaukee County, WI. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Ozaukee County, WI?
Of the districts serving Ozaukee County, Cedarburg School District has the highest rating on this site at 10/10. That places it in the 99th percentile among Wisconsin school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Wisconsin reading and math assessments, ranked against other districts in Wisconsin and converted to a 1–10 scale. Percentiles compare districts within Wisconsin only, never across state lines.