ZIP codes in Ozaukee County
14 ZIPs touch Ozaukee County, Wisconsin. The blue dashed line is the county border; orange ZIPs reach into it.
14
ZIP codes
7
cross the county line
180,005
people in these ZIPs
72
counties in WI
Most people
Ozaukee County ZIP list
More counties in Wisconsin
- Menominee County4
- Milwaukee County49
- Monroe County15
- Oconto County19
- Oneida County15
- Outagamie County28
- Pepin County6
- Pierce County14
- Polk County20
- Portage County23
- Price County14
- Racine County20
Questions people actually ask
How many ZIP codes are in Ozaukee County, Wisconsin?
14 ZIP codes reach into Ozaukee County, including 1 PO Box or single-address ZIPs placed by the town they serve. 7 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Ozaukee County has the most people?
53217 (Milwaukee) has about 29,957 residents, the most of any ZIP touching Ozaukee County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Ozaukee County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Ozaukee County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
Keep exploring
Updated 2026-11-10 · Where the data comes from