There are 7 US Post Offices in Ozaukee County serving a total of 81,334 residents equating to 11,619 residents per post office. It's estimated that approximately 129,818 packages are handled across the 7 county post offices annually. Ozaukee County is a county in the U.S. state of Wisconsin. As of the 2010 census, the population was 86,395. Its county seat is Port Washington. Ozaukee County is included in the Milwaukee-Waukesha-West Allis, WI Metropolitan Statistical Area. 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."