Ozaukee County, Wisconsin

Ozaukee County
Ozaukee County Courthouse in July 2009
Location within the U.S. state of Wisconsin
Wisconsin's location within the U.S.
Coordinates: 43°23′55″N 87°53′37″W / 43.3985°N 87.8936°W / 43.3985; -87.8936
Country United States
State Wisconsin
Founded1853
SeatPort Washington
Largest cityMequon
Area
  Total
1,116.2 sq mi (2,891 km2)
  Land233.08 sq mi (603.7 km2)
  Water883.12 sq mi (2,287.3 km2)
Population
 (2020)
  Total
91,503
  Estimate 
(2023)
93,460
  Density392.7/sq mi (151.6/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district6th
Websiteozaukeecounty.gov

Ozaukee County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 91,503. Its county seat is Port Washington. Ozaukee County is included in the Milwaukee metropolitan area.

As of the 2000 Census, Ozaukee County had the second-lowest poverty rate of any county in the United States, at 2.6%. In terms of per capita income, it is the 25th-wealthiest county in the country.