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Tri-Valley Aerial
Tri-Valley Aerial
Tri-Valley location in California
Tri-Valley location in California
Tri-Valley is located in the US
Location in the United States
Coordinates: 37°39′45″N 121°52′29″W / 37.66250°N 121.87472°W / 37.66250; -121.87472Coordinates: 37°39′45″N 121°52′29″W / 37.66250°N 121.87472°W / 37.66250; -121.87472
Time zonePST

The Tri-Valley area is a triangle-shaped region of the eastern San Francisco Bay Area, 18 miles southeast of Oakland and 33 miles from San Francisco. It encompasses the cities of Pleasanton, Livermore, Dublin, San Ramon, Danville, Alamo, Blackhawk and Diablo.

The three valleys from which it takes its name are Amador Valley, Livermore Valley and San Ramon Valley. The region is well known for its Mediterranean climate, wine region, historic downtown areas, high cost of living and fine dining. It is a primarily affluent suburban area with a population of about 360,000. It offers more affordable living accommodations than the cities of San Francisco and San Jose.[1][2]


The Ohlone tribe settled the area in 2000 BCE, particularly in the northern part of Pleasanton. In 1772 CE, however, Spanish settlers involved with the nearby mission work at Mission San Jose strongly influenced the Ohlone way of life.[3]

The area began to be developed when the Gold Rush ended. During this period, the area went from being marshland to agricultural.[4]


The Tri-Valley is serviced by WHEELS, operated by LAVTA, formerly called Tri-Valley Transit, a bus agency that operates local bus service in addition to feeder service to Hacienda Business Park, Lawrence Livermore National Laboratory, Las Positas College, Stoneridge Mall, and Dublin/Pleasanton BART station.

Two major highways, Interstates 580 and 680 cross the Tri-Valley area. Interstate 580 runs east-west, connecting the area to the Central Valley to the east and the North Bay area to the west. Interstate 680 runs north-south, connecting the area to the South Bay area in the south, and the Concord-Walnut Creek area in the north. The two interstates cross on the border of Dublin and Pleasanton.

The Tri-Valley area is also serviced by BART, offering service to the rest of the San Francisco Bay Area with two stops: West Dublin/Pleasanton and the Dublin/Pleasanton terminus station.[5] The West Dublin/Pleasanton Station opened in 2011, and was the first infill station on an existing line. BART plans include eventually extending the line to Livermore.


The Tri-Valley is home to many corporate headquarters including 24 Hour Fitness, Blackhawk Network Holdings, CallidusCloud, Chevron, The Cooper Companies, Ellie Mae, GE Digital, Patelco Credit Union, Ross Stores, Safeway, Shaklee, Veeva Systems and Workday.

Major employment centers include Bishop Ranch and Hacienda Business Park.

Lawrence Livermore National Laboratory and Sandia National Laboratories are also major employers in the region.


The Tri-Valley features access to many recreational options including Alviso Adobe Community Park, Blackhawk Museum, Brushy Peak Regional Preserve, Del Valle Regional Park, Dublin Hills Regional Park, Eugene O'Neill National Historic Site, Forest Home Farms, Iron Horse Regional Trail, Las Trampas Regional Wilderness, Little Hills Picnic Ranch, Livermore Valley Wine Country, Morgan Territory Regional Preserve, Mount Diablo State Park, Pleasanton Ridge Regional Park, Shadow Cliffs Regional Recreation Area and The Wave Waterpark.

See also[edit]


  1. ^ CBS (2017). "10 Most Expensive Cities in America". CBS.
  2. ^ CBS (2017). "10 Most Expensive Cities in America". CBS.
  3. ^ "Pleasanton History - History of Pleasanton California - Pleasanton CA Background". Retrieved 2018-01-01.
  4. ^ "History of Pleasanton". Museum on Main. Retrieved 2018-01-01.
  5. ^ "Station List |". Retrieved 2018-01-01.