“Stockton is situated amidst the farmland of California’s San Joaquin Valley, a subregion of the Central Valley. In and around Stockton are thousands of miles of waterways, which make up the California Delta.
Interstate 5 and State Route 99, inland California’s major north-south highways, pass through the city. State Route 4 and the dredged San Joaquin River connect the city with the San Francisco Bay Area to its west. Stockton and Sacramento are California’s only inland sea ports.
According to the United States Census Bureau, the city occupies a total area of 64.8 square miles (168 km2), of which 61.7 square miles (160 km2) is land and 3.1 square miles (8.0 km2) (4.76%) is water.” – Wikipedia