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Northern California

American geographic and cultural region

  • 24 min read
  • 15 chapters
The Golden Gate Bridge on a clear day. Fort Point is visible at the bottom.
King of Hearts · CC BY-SA 3.0

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Northern California is coterminous with the natural range of the coast redwood and the giant sequoia, with many well-known old-growth forests and smaller groves. It contains most of the Sierra Nevada, including Yosemite Valley and part of Lake Tahoe, Mount Shasta (the second-highest peak in the Cascade Range after Mount Rainier in Washington), and most of the Central Valley, one of the world's most productive agricultural regions. Northern California is also home to Silicon Valley, the global headquarters for several of the largest and most powerful companies in the world, including Alphabet Inc. (Google), Apple, Meta, and Nvidia.

Evidence of Native American habitation in the area dates from at least 19,000 years ago and successive waves of arrivals led to one of the most densely populated areas of pre-Columbian North America. The arrival of European explorers from the early 16th to the mid-18th centuries did not establish European settlements in northern California. In 1770, the Spanish mission at Monterey was the first European settlement in the area, followed by other missions along the coast—eventually extending as far north as Sonoma County.

Description

North–south divisions of California

California experienced a population boom during its gold rush (1848–1855), bringing more than 300,000 new residents, with very few of these settling in the southern part of the state. The northern two-thirds of the state was seen as the main part, and was often referred to as simply "California", while the southern third was called "Southern California". At that time, the state was profoundly divided by the Tehachapi Mountains which were a barrier to travelers before highways were built, and remain a bioregion barrier. This geographical barrier curves from Point Conception at the Pacific Ocean eastward through the Transverse Ranges including Mount Pinos and Tejon Pass, continuing through the Tehachapi Mountains including Tehachapi Pass, then cutting northward through the southern Sierra Nevada mountain range to Mount Patterson and the Nevada border. The Mojave Desert and the Great Basin Desert are separated from Northern California by mountain ranges in this definition of bioregions. Southern California in the 1850s was a backwater of mainly Spanish-speaking Californios who resented paying state taxes without receiving state projects.

In 1859, as proposed by the Californio politician Andrés Pico, the California State Legislature passed the Pico Act aiming to divide the state and create a new territory in the south. The border started in the west at a latitude of six standard parallels south of Mount Diablo—meaning 144 miles south of Mount Diablo at the latitude of 35°45'N, currently the border between Monterey and San Luis Obispo counties. The proposed border bent southward to capture more of the Central Valley, then it angled northeast from Old Tejon Ranch to the California border. The new southern portion was to be called the Territory of Colorado because much of its eastern border was the Colorado River. This legislation was signed by Governor John B. Weller and sent to the United States Congress for ratification, but it never came to a vote. Congress was too divided with tensions which would soon break out into the American Civil War, and despite the efforts of Senator Milton Latham, the bill died. However, an east-west line starting at the southern end of Monterey County grew to define one of the views of north–south division of the state.

"Northern California" may refer to the state's northernmost 48 counties, dividing the state at 35°45'N, or it may refer to the portion north of the geographic barrier formed by the Transverse Ranges, the Tehachapi Mountains, and the Southern Sierras. Because of California's large size and diverse geography, the state can be subdivided in other ways as well. For example, the Central Valley is a region that is distinct both culturally and topographically from coastal California, though in northern versus southern California divisions, the Sacramento Valley and most of the San Joaquin Valley are usually placed in northern California. Some observers describe three partitions of California, with north and south sections separated by Central California.

Technically, California's exact north–south midway division is around 37°N, near the latitude of Morgan Hill and Chowchilla. The geographic center of California is at 37°09′58″N 119°26′58″W / 37.16611°N 119.44944°W near North Fork, northeast of Fresno.

The state is often considered as having an additional division north of the urban areas of the San Francisco Bay Area and Sacramento metropolitan areas. Extreme northern residents have felt under-represented in state government and, in 1941, attempted to form a new state with southwestern Oregon to be called Jefferson, or more recently to introduce legislation to split California into two or three states.

The coastal area north of the Bay Area is often referred to as the North Coast, touching the counties of Mendocino, Lake, Humboldt, and Del Norte. The interior region north of Sacramento metropolitan area is referred to by locals as the Northstate, consisting of about 20 counties.

"Northern California" was used by Tim Draper as the name of the northernmost state to be created by splitting California into three new states. The bill, Cal 3, was prevented from appearing on the 2018 California ballot because of a constitutional review by the Supreme Court of California.

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