Ozaukee County is a county in the U.S. state of Wisconsin. As of 2010, the population was 86,395. Its county seat is Port Washington. As of the 2000 Census, Ozaukee County had the 2nd 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. Bolstered by low crime rates and school districts with high graduation rates, Forbes Magazine ranked Ozaukee County #2 on its list of "America's Best Places To Raise A Family" in June, 2008.
There were 30,857 households out of which 36.00% had children under the age of 18 living with them, 65.60% were married couples living together, 6.50% had a female householder with no husband present, and 25.40% were non-families. 21.40% of all households were made up of individuals and 8.40% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.07.
In the county, the population was spread out with 26.60% under the age of 18, 6.80% from 18 to 24, 28.00% from 25 to 44, 25.90% from 45 to 64, and 12.60% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 97.30 males. For every 100 females age 18 and over, there were 94.00 males.
The median income for a household in the county was $62,745, and the median income for a family was $72,547 (these figures had risen to $73,197 and $88,231 respectively as of a 2007 estimate). Males had a median income of $50,044 versus $30,476 for females. The per capita income for the county was $31,947. About 1.7% of families and 2.6% of the population were below the poverty line, including 2.6% of those under age 18 and 4.1% of those age 65 or over.