Of 58 counties in the Golden State, San Joaquin County ranks 33rd by size (1,426 square miles). San Joaquin County is in Central Valley California. A recent survey of Land Network data shows about 1,000 acres of lakefront homes and property for sale in California's San Joaquin County, which is valued at a combined $2 million. Browse all waterfront property for sale in San Joaquin 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 Joaquin County is house.