WI · CountyOzaukee County, Wisconsin16 cities in the directoryCitiesCityPopulationRegionBayside4,338—Belgium2,515—Belgium1,473—Cedarburg13,011—Cedarburg6,205—Fredonia2,281—Fredonia2,101—Grafton12,741—Grafton4,387—Mequon25,329—Newburg1,131—Port Washington12,750—Port Washington1,606—Saukville4,305—Saukville1,759—Thiensville3,299—