San Joaquin County is located in the California’s Central Valley.
Known for its rich agricultural land, thriving communities, and growing urban centers. The county seat is Stockton, one of the state’s major inland ports, connecting to the San Francisco Bay via the San Joaquin River. The area features a blend of farmland, waterways, and suburban development, making it a key hub for agriculture, shipping, and logistics in Northern California.
ZIP code: 95201–95297 Elevation: Approximately 13 feet (4 m) at the county seat, Stockton Population: 779,233 (2020 census) Area code: 209