Wisconsin · FIPS 55089 · County seat: Port Washington
Ozaukee County, WI GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Ozaukee County, WI: the Ozaukee County parcel map. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Ozaukee County parcel map ↗
Opens maps.ags.ruekert-mielke.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Ozaukee County parcel map |
|---|---|
| Type | County-run map |
| Website | maps.ags.ruekert-mielke.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Port Washington |
| Population | 93,460 (2023 Census Bureau estimate) |
| Land area | 233 sq mi |
| FIPS code | 55089 |
Where the parcel data comes from
It is a county-level map: Ozaukee County or the company it hires keeps the parcel layer up to date. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Ozaukee County viewer
- Press the button above to open the county's own web map.
- Search for the property or pan and zoom to it.
- Click the lot to bring up what the county publishes about it.
- Look for print or measure tools if you need a quick map or rough size.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
Ozaukee County by the numbers
The U.S. Census Bureau estimated Ozaukee County's population at 93,460 in 2023, spread over about 233 square miles of land, or roughly 401 people per square mile. By population it ranks 18th of 72 counties in Wisconsin. Another 883 square miles of water fall within its lines, according to Census mapping. Its county seat is Port Washington.
Counties next to Ozaukee County
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Ozaukee County:
- Milwaukee County
- Sheboygan County
- Washington County
- Waukesha County
- Muskegon County, MI
- Oceana County, MI
A note on accuracy
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.