Alameda County is in San Francisco Bay Area California. Of the 58 counties in the Land of Milk and Honey, Alameda County is 49th in terms of its size (525,475 acres). The most common type of land for sale by combined acreage in Alameda County is house. Browse all waterfront property for sale in Alameda County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits!