Of 58 counties in the Land of Milk and Honey, San Luis Obispo County ranks 18th by size (3,615 square miles). San Luis Obispo County is in Central Coast California. Recent listings of beachfront homes and property for sale in California's San Luis Obispo County totals nearly 1,000 acres and a combined market value of $6 million. The most common type of land for sale by combined acreage in San Luis Obispo County is residential property. Browse all waterfront property for sale in San Luis Obispo 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! The most common type of land for sale by combined acreage in San Luis Obispo County is residential property.