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 Dublin, Livermore, Pleasanton and San Ramon.

​​​​​​​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, wineries, historic downtown areas, high cost of living and fine dining as well as lush landscape for outdoor activities. It is a primarily affluent suburban area and it offers more affordable living accommodations than the cities of San Francisco and San Jose.