Diablo Range is an unincorporated census county division (CCD) located in the Diablo Mountains Range, on the eastern side of

Santa Clara County, California Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of California, with a population of 1,936,259, as of the 2020 United States Census, 2020 census. Santa Clara County and neighboring Sa ...

. The area covers approximately , much of it open space, and contains Anderson Lake, Bullhead, Calaveras, and Cherry Flat reservoirs, as well as the Anderson Lake County Park,

Grant Ranch County Park Joseph D. Grant County Park is the largest county park in Santa Clara County, California. Also known as Grant Ranch Park, this site is situated in the Diablo Range foothills of the eastern Santa Clara Valley. The park is one of 28 owned by Santa ...

, and Metcalf Motorcycle county park. The

Henry W. Coe State Park Henry W. Coe State Park (often known simply as Henry Coe or Coe Park) is a state park of California, United States, preserving a vast tract of the Diablo Range. The park is located closest to the city of Morgan Hill, and is located in both Sa ...

and

Pacheco State Park Pacheco State Park is a California State Park to the south of Pacheco Pass in the Diablo Range, located mostly in western Merced County, California but extending into southeastern Santa Clara County and near Hollister in San Benito County. Locate ...

, the Sierra Vista Open Space, and

Blue Oak Ranch Reserve The Blue Oak Ranch Reserve, a unit of the University of California Natural Reserve System, is an ecological reserve and biological field station in Santa Clara County, California. It is located on in the Diablo Range, northwest of Mount Hamilt ...

preserve The word preserve may refer to: Common uses * Fruit preserves, a type of sweet spread or condiment * Nature reserve, an area of importance for wildlife, flora, fauna or other special interest, usually protected Arts, entertainment, and media ...

s, along with the Mount Hamilton

Lick Observatory The Lick Observatory is an astronomical observatory owned and operated by the University of California. It is on the summit of Mount Hamilton, in the Diablo Range just east of San Jose, California, United States. The observatory is managed by th ...

, and the Ashrama retreat center are also located in the area. The region has a warm and dry

Mediterranean climate A Mediterranean climate (also called a dry summer temperate climate ''Cs'') is a temperate climate sub-type, generally characterized by warm, dry summers and mild, fairly wet winters; these weather conditions are typically experienced in the ...

. Although some agriculture exists, many ranches in the area are used for livestock grazing or

hunting Hunting is the human activity, human practice of seeking, pursuing, capturing, or killing wildlife or feral animals. The most common reasons for humans to hunt are to harvest food (i.e. meat) and useful animal products (fur/hide (skin), hide, ...

game A game is a structured form of play (activity), play, usually undertaken for enjoyment, entertainment or fun, and sometimes used as an educational tool. Many games are also considered to be work (such as professional players of spectator s ...

. As of the 2010 US Census, the population was 1,508 residents of whom 55.2% were non-Hispanic white, 26.4% Hispanic, 12.7% Asian, and 5.7% of other races, with a median age of 42.6 years old. As of 2009, the median income was $91,977 and median home price $1,272,823. Most residents and businesses in the area use postal ZIP codes from neighboring cities of Livermore,

Milpitas Milpitas (Spanish for "little milpas") is a city in Santa Clara County, California, in Silicon Valley. As of the 2020 census, the city population was 80,273. The city's origins lie in Rancho Milpitas, granted to Californio ranchero José Marí ...

, San Jose,

Morgan Hill Morgan Hill is a city in Santa Clara County, California, at the southern tip of Silicon Valley, in the San Francisco Bay Area. Morgan Hill is an affluent residential community, the seat of several high-tech companies, and a dining, entertainmen ...

, Gilroy, or Hollister. The telephone area codes are 408 and 669 (Santa Clara County), 209 (overlaps with Stanislaus County to the east), and 831 (overlaps with San Benito County to the south).

History

In Spanish, the word ''diablo'' means "

devil A devil is the personification of evil as it is conceived in various cultures and religious traditions. It is seen as the objectification of a hostile and destructive force. Jeffrey Burton Russell states that the different conceptions of t ...

". The region includes a large portion of the Northern

Diablo Range The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges in northern California, United States. It stretches from the eastern San Francisco Bay area at its northern end to the Salinas Valley are ...

. It is home to recovering populations of

tule elk The tule elk (''Cervus canadensis nannodes'') is a subspecies of elk found only in California, ranging from the grasslands and marshlands of the Central Valley to the grassy hills on the coast. The subspecies name derives from the tule (), a s ...

golden eagle The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known bird of p ...

s, and

Bay checkerspot The Bay checkerspot (''Euphydryas editha bayensis'') is a butterfly endemism, endemic to the San Francisco Bay region of the U.S. state of California. It is a federally threatened species, as a subspecies of ''Euphydryas editha''. Since the 1980 ...

butterflies.

References

External links

Map of Diablo Range, California
{{SF Bay Area Unincorporated communities in Santa Clara County, California Census county divisions in Santa Clara County, California Diablo Range Unincorporated communities in California