San Joaquin Valley

The San Joaquin Valley is the southern half of California’s Central Valley, a broad inland plain that is one of the state’s principal agricultural regions. It extends roughly from the Sacramento-San Joaquin Delta in the north to the Tehachapi Mountains in the south.

The valley contains large agricultural landscapes, farm towns and several mid-sized cities such as Stockton, Fresno and Bakersfield; it is also crossed by major transport corridors including State Route 99 and Interstate 5. Seasonal agricultural activity and roadside produce markets are common sights, and the region includes state parks and reservoirs used for recreation.

Historically an area of Native American habitation, the valley was settled and developed for large-scale agriculture during the 19th and 20th centuries with the growth of irrigation infrastructure. Over the 20th century it became central to California’s role as a major national food producer.

The San Joaquin Valley lies in central California, south of the Sacramento-San Joaquin Delta and north of the Tehachapi Mountains, covering parts of several counties and centring on cities such as Fresno and Bakersfield.

• Agricultural importance: Covers the southern portion of California’s Central Valley and is one of the United States’ most productive agricultural regions, producing large shares of the nation’s fruits, vegetables and nuts.
• Size and drainage: The valley is drained by the San Joaquin River system and is roughly 400 km in length north-to-south, with width varying from about 50 to 120 km depending on location.

What to See#

• Northern valley: Northern San Joaquin Valley - area around Stockton and Modesto, where the valley transitions to the Sacramento-San Joaquin Delta.
• Central valley: Central San Joaquin Valley - area around Fresno, characterized by intensive irrigated agriculture and major transport routes including State Route 99.
• Southern valley: Southern San Joaquin Valley - area around Bakersfield, a major population and economic centre in the southern part of the valley.

The San Joaquin Valley stretches roughly from Stockton in the north to Bakersfield in the south. Major highways include Interstate 5 and State Route 99. Airports at Fresno, Bakersfield and Stockton serve the region; driving is the best way to explore the valley’s towns and agricultural zones.

• For light and views, early morning is best-farms and orchards often appear to breathe in the long shadows at sunrise.
• If interested in agriculture history, visit during harvest festivals when local towns showcase produce and machinery.
• Avoid travel through the valley during intense summer heat waves; roadside services can be sparse in remote stretches.