Southern California

Coordinates: 34°00′N 117°00′W / 34.000°N 117.000°W / 34.000; -117.000
Source: Wikipedia, the free encyclopedia.
"SoCal" redirects here. For other uses, see SoCal (disambiguation).
Not to be confused with Baja California or Baja California Sur.

Southern California
Images top to bottom, left to right: Hermosa Beach Pier, Disneyland Resort, Village of La Jolla, Santa Monica Pier, Surfer at Black's Beach, Hollywood Sign, Downtown Los Angeles, San Diego Skyline
Red: The ten counties of Southern California
Red: The ten counties of Southern California
CountryUnited States
StateCalifornia
CountiesImperial
Kern
Los Angeles
Orange
Riverside
San Bernardino
San Diego
San Luis Obispo
Santa Barbara
Ventura
Largest cityLos Angeles
Area
(10-county)[1]
 • Total56,505 sq mi (146,350 km2)
Population
 (2020)[2]
 • Total23,762,904

Southern California (commonly shortened to SoCal) is a

urban agglomeration in the United States)[3][4] as well as the Inland Empire (another large metropolitan area). The region generally contains ten of California's 58 counties: Imperial, Kern, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, San Luis Obispo and Ventura
counties.

Although geographically smaller than Northern California in land area, Southern California has a higher population, with 23.76 million residents as of the 2020 census. The sparsely populated desert region of California occupies a significant portion (part of which has even been proposed to be split into a new county due to cultural, economic and geographic differences relative to the rest of the more urban region) of the area: the Colorado Desert, along with the Colorado River, is located on Southern California's eastern border with Arizona, and the Mojave Desert shares a border with Nevada to the northeast. Southern California's southern border with Baja California is part of the Mexico–United States border.

Constituent metropolitan areas

Southern California encompasses eight metropolitan areas (MSAs), three of which together form the Greater Los Angeles

San Luis Obispo, and El Centro (Imperial County)
metropolitan areas.

The Southern California Megaregion (or megalopolis) is larger still, extending northeast into Las Vegas, Nevada and south across the Mexican border into Tijuana.[5]

Significance

San Diego Marina district
Venice
, a neighborhood in Los Angeles

Within Southern California are two major cities,

country's largest metropolitan areas.[6]
With a population of approximately 4 million, Los Angeles is the most populous city in California and the second most populous in the United States. South of Los Angeles and with a population of approximately 1.4 million is San Diego, the second most populous city in the state and the eighth most populous in the nation.

Laguna Beach

The counties of Los Angeles, San Diego, Orange, Riverside, and San Bernardino are the five most populous in the state, and are among the top 15 most populous counties in the United States.[7]

The

Warner Bros
. Universal, Warner Bros. and Sony also run major record companies.

Southern California is also home to a large homegrown surf and skateboard culture. Companies such as

Mission Bay in 1974. Since then, Southern California, and San Diego in particular, have become a mecca for triathlon
and multi-sport racing, products, and culture.

Southern California has multiple sports franchises and networks, such as

Fox Sports Net
.

Many of these locals and tourists frequent the

Palm Springs is also popular.[citation needed
]

Northern boundary

standard parallel

Southern California is generally considered the area of California south of the latitude 35°45',[10] approximately one-third of the state, formed by the northern boundaries of San Luis Obispo, Kern, and San Bernardino counties, which are not exactly a straight line. Another definition for Southern California uses Point Conception and the Tehachapi Mountains as the northern geographical barriers, especially when defining California's bioregions.[11][12]

Topography of the border region

Following the acquisition of the territory of California by the United States, several pro-slavery politicians attempted to arrange the division of Alta California at 36 degrees, 30 minutes, the

slave state
.

Subsequently, Californians (dissatisfied with inequitable taxes and land laws) and pro-slavery Southerners in the lightly populated "cow counties" of Southern California attempted three times in the 1850s to achieve a separate statehood or territorial status

election of Abraham Lincoln in 1860 and the subsequent American Civil War led to the proposal never coming to a vote.[13][14]

In 1900, the Los Angeles Times defined Southern California as including "the seven counties of Los Angeles, San Bernardino, Orange, Riverside, San Diego, Ventura and Santa Barbara." This definition left out San Luis Obispo and Kern counties.[15]

Southern California was the name of a proposed new state which failed to get on the 2018 California ballot. The ballot measure proposed splitting the existing state into three parts.[16]

In December 2020, during the COVID-19 pandemic, the state government led by Governor Gavin Newsom divided the state into five regions for the purpose of issuing stay-at-home orders. The Southern California region consists of the following counties: Imperial, Los Angeles, Kern, Orange, Riverside, San Bernardino, San Diego, San Luis Obispo, Santa Barbara and Ventura. However, Kern County was grouped with other counties of the San Joaquin Valley, California's central agricultural valley.[17]

Population, land area & population density (2020)
County
Ref. 		Population Land
mi2[18] 		Land
km2 		Pop.
/mi2 		Pop.
/km2
Los Angeles County[19]
 10,014,009 4,059.28 10,513.49 2,466.94 952.49
San Diego County[20]
 3,298,634 4,210.23 10,904.45 783.48 302.50
Orange County[21] 3,186,989 792.84 2,053.45 4,019.71 1,552.02
Riverside County[22]
 2,418,185 7,209.27 18,671.92 335.43 129.51
San Bernardino County[23]
 2,181,654 20,068.01 51,975.91 108.71 41.97
Kern County[24]
 909,235 8,134.65 21,068.65 111.77 43.15
Ventura County[25]
 843,843 1,840.79 4,767.62 458.41 176.99
Santa Barbara County[26]
 448,229 2,733.94 7,080.87 163.95 63.30
San Luis Obispo County[27]
 282,424 3,300.85 8,549.16 85.56 33.03
Imperial County[28]
 179,702 4,175.54 10,814.60 43.04 16.62
Southern California 23,762,904 56,525.40 146,400.11 420.39 162.31
California 39,538,223 155,959.34 403,932.84 253.52 97.88

Urban landscape

Percentage of households with incomes above $150,000 across LA County census tracts

Southern California consists of a heavily developed urban environment, home to some of the largest

San Bernardino, each of which are the centers of their respective metropolitan areas, composed of numerous smaller cities and communities. The urban area is also host to an international San Diego–Tijuana metropolitan region, created by the urban area spilling over into Baja California
.

Travelling south on

San Luis Obispo
areas.

The skyline of Downtown Los Angeles as seen at sunset in October 2006. Standing 1,018 ft (310 m) high, with 73 floors, the U.S. Bank Tower was the West Coast's tallest building when it was built in 1989, until the neighboring Wilshire Grand Center surpassed it in 2017.

Climate

Köppen climate types of southern California

Most of Southern California has a

mountain, with infrequent rain and many sunny days. Summers are hot or warm, and dry, while winters are mild, and rainfall is low to moderate depending on the area. Rain is infrequent, but is often heavy when it does occur, making flash floods an aspect of living in Southern California. This climatic pattern was alluded to in the hit song "It Never Rains (In Southern California)
". While snow is very rare in lower elevations, mountains above 5,000 feet (1,500 m) receive plentiful snowfall in the winter.

Since the first decade of the 21st century, droughts and wildfires have increased in frequency as a result of climate change.[32][33]

Natural landscape

Chula Vista
Autumn of 2008 in Southern California
Main article:
Geography of Southern California

Southern California consists of one of the more varied collections of geologic, topographic, and natural ecosystem landscapes in a diversity outnumbering other major regions in the state and country. The region spans from Pacific Ocean

shorelines, beaches, and coastal plains, through the Transverse and Peninsular Ranges with their peaks, and into the large and small interior valleys, to the vast deserts of California
.

Introductory categories include:

Geography

Geographic features

View from La Jolla Cove in San Diego
Peaks in the eastern San Gabriel Mountains, Angeles National Forest, San Bernardino County
Yucca Valley
with Visitor Center in Background in June 2017
Ocean Beach Sunset in San Diego

Geology

List of major fault zones

Note: Plate boundary faults are indicated with a (#) symbol.

Northridge earthquake shake map

Earthquakes

Each year, Southern California has about 10,000 earthquakes. Nearly all of them are too small to be felt. Only several hundred have been greater than magnitude (Mw ) 3.0, and only about 15–20 have been greater than Mw  4.0.[34] California as a whole enacted the Alquist Priolo Special Studies Zone Act in the wake of the 1971 San Fernando earthquake. The act prohibits new construction of residential buildings closer than 50 feet from a surface rupturing active fault zone. In addition, the act improved safety by requiring new structures (both residential and commercial) to be seismically retrofitted. It also required existing infrastructure to comply.

Since 1972, numerous large magnitude earthquakes have struck Southern California with little widespread damage in part due to act. However, exceptions can be noted for epicenters that lie directly on top of densely populated regions such as the Mw  6.7

1994 Northridge Earthquake and, to a lesser extent, the smaller Mw  5.5 2008 Chino Hills earthquake. The Northridge earthquake occurred on a blind-thrust fault directly underneath the San Fernando Valley
, which until the earthquake was previously undiscovered. Seismic retrofitting of existing and new construction is aimed to prevent damage and save lives in the aftermath of a major quake, but it cannot guarantee that buildings will be unscathed if the epicenter is relatively close-by.

Despite the act already in law, the 1994 Northridge earthquake was particularly destructive, causing a substantial number of deaths, injuries, and structural collapses. The quake caused the most property damage of any earthquake in U.S. history at an estimated $20 billion.[35]

Many Southern California faults are able to produce a Mw  6.7 earthquake or greater, such as the San Andreas Fault, which can produce Mw  8.0 or greater. The largest known earthquake in California was the 1857 Fort Tejon earthquake that ruptured 200+ miles of the San Andreas Fault from Parkfield to Wrightwood. With a recurrence interval of roughly 150 years, this part of the San Andreas fault is well within its window to produce another large earthquake. Along with the southern section of the San Andreas (in the Palm Springs region, which has not ruptured in ~400 years), the entire Southern California portion of the San Andreas Fault is ready to produce a powerful earthquake in the near future.

While the San Andreas Fault is the most well known major earthquake producing fault in California, it is not the only one that can produce large magnitude events. Notable examples include the San Jacinto Fault (a splay of the San Andreas that runs directly under the I-10 & I-215 interchange), the Newport–Inglewood-Rose Canyon Fault (located adjacent to SoFi Stadium and responsible for Signal Hill), the Elsinore Fault (created Lake Elsinore), the Garlock Fault (which marks boundary between of the Sierra Nevada and the Mojave Desert), and the Hollywood fault (which is within feet of Capitol Records and is roughly parallel to Hollywood Boulevard.

The United States Geological Survey (USGS) has released a California earthquake forecast,[36] which models earthquake occurrence in California.

List of earthquakes

This is a partial list of earthquakes in Southern California. For a full list, see List of earthquakes in California.

Note: Earthquakes with epicenters in the Los Angeles Metro Area are marked with the (#) symbol. Other earthquakes mentioned indicates shaking was felt in the region.

Population

See also: Greater Los Angeles § Demographics
Historical population
CensusPop.Note%±
18506,492—
186033,280412.6%
187044,15832.7%
188091,916108.2%
1890251,770173.9%
1900337,32834.0%
1910808,408139.7%
19201,423,78676.1%
19303,044,978113.9%
19403,840,73326.1%
19505,931,97554.4%
19609,398,72258.4%
197012,103,55928.8%
198014,308,74218.2%
199018,269,09527.7%
200020,637,51213.0%
201022,680,0109.9%
202023,762,9044.8%
Sources: 1790–1990, 2000, 2010, 2020[18][37][38]
Chart does not include Indigenous population figures.
Studies indicate that the Native American
population in California in 1850 was close to 150,000
before declining to 15,000 by 1900.[39]
Ethnic origins in Southern California
Downtown San Bernardino

As of the

Greater Sacramento
region.

Southern California consists of one

San Diego-Carlsbad-San Marcos metropolitan area form the Southern Border Region.[43][44] North of Greater Los Angeles are the Santa Barbara, San Luis Obispo, and Bakersfield
metropolitan areas.

Cities

See also: List of largest cities in California by population

Los Angeles (with a population of approximately 3.9 million people) and San Diego (at nearly 1.4 million people) are the two largest cities in all of California and are among the top eight largest cities in the United States. In Southern California, there are also 14 cities with more than 200,000 residents and 48 cities over 100,000 residents. Many of Southern California's most developed cities lie along or in close proximity to the coast, with the exception of San Bernardino and Riverside.

Counties

Curt Teich map postcard depicting SoCal attractions

Economy

Industries

Southern California has a diverse economy and is one of the largest economies in the United States. It is dominated by and heavily dependent upon the abundance of petroleum, as opposed to other regions where automobiles are not nearly as dominant, due to the vast majority of transport that runs on this fuel. Southern California is famous for tourism and the

entertainment industry
. Other industries include software, automotive, aerospace, finance, biomedical, ports and regional logistics. The region was a leader in the housing bubble from 2001 to 2007 and has been heavily impacted by the housing crash.

Since the 1920s, motion pictures, petroleum, and aircraft manufacturing have been major industries. In one of the richest agricultural regions in the U.S., cattle and citrus were major industries until farmlands were turned into suburbs. Although military spending cutbacks have had an impact, aerospace continues to be a major factor.[45]

Major central business districts

Taco Bell Headquarters in Irvine

Southern California is home to many major business districts. Central business districts (CBD) include

Century City and Warner Center in the San Fernando Valley
. The area of Santa Monica and Venice (and perhaps some of Culver City) is informally referred to as "Silicon Beach" because of the concentration of financial and marketing technology-centric firms located in the region.

The

Hospitality Business/Financial Centre, University District
which are in the cities of San Bernardino and Riverside.

In Orange County, has highly developed suburban business centers (also known as

Irvine Business Complex; Newport Center; and Irvine Spectrum. Downtown Santa Ana
is an important government, arts and entertainment, and retail district.

North County
regions.

Theme parks and Water parks

Anaheim

Los Angeles

Orange County

Riverside & San Bernardino

San Diego

Vineyard-Winery American Viticultural Area (AVA) districts

California wine AVA-American Viticultural Areas in southern California:

Transportation

See: Category: Transportation in Southern California

Southern California is home to

Ontario, Burbank and Long Beach
; and numerous smaller commercial and general aviation airports.

Six of the seven lines of the commuter rail system, Metrolink, run out of Downtown Los Angeles, connecting Los Angeles, Ventura, San Bernardino, Riverside, Orange, and San Diego counties with the other line connecting San Bernardino, Riverside, and Orange counties directly.

Southern California is also home to the Port of Los Angeles, the country's busiest commercial port; the adjacent Port of Long Beach, the country's second busiest container port; and the Port of San Diego.

Airports

The following table shows all airports listed by the Federal Aviation Association (FAA) as a hub airport:[46]

Airport ID City
(Metro area)		 Category Enplanements
(2011) (mil)
Los Angeles International Airport LAX Los Angeles Large Hub 30.5m
San Diego International Airport SAN San Diego Large Hub 8.5m
John Wayne Airport SNA Orange County Medium Hub 4.2m
Ontario International Airport ONT San Bernardino, Riverside Medium hub 2.3m
Hollywood Burbank Airport BUR Burbank (LA) Medium Hub 2.1m
Long Beach Airport LGB Long Beach (LA) Small Hub 1.5m
Palm Springs International Airport PSP Palm Springs Small Hub 0.8m
Santa Barbara Municipal Airport SBA Santa Barbara Small Hub 0.7m
San Luis Obispo Regional Airport SBP San Luis Obispo Small Hub 0.5m
San Bernardino International Airport SBD San Bernardino, Riverside Small Hub NA

Freeways and highways

Interstate and state highway system of Southern California
Main article: Southern California freeways

Sections of the Southern California freeway system are often referred to by names rather than by the official numbers.

Interstate Highways
Sign Interstate Freeway name
Interstate 5
Golden State Freeway
Santa Ana Freeway
San Diego Freeway

Montgomery Freeway
Interstate 8
Mission Valley Freeway
Interstate 10
San Bernardino Freeway
Indio (Dr. June McCarroll
) Freeway
Blythe Freeway
Interstate 15
Temecula Valley Freeway
Escondido Freeway
Interstate 40
Needles Freeway
Interstate 105 Century (Glenn Anderson) Freeway
Interstate 110
Harbor Freeway
Interstate 210
 Foothill Freeway
Interstate 215
Moreno Valley Freeway
Escondido Freeway
Interstate 405 San Diego Freeway
Interstate 605 San Gabriel River Freeway
Interstate 710
 Long Beach Freeway
Interstate 805 Jacob Dekema Freeway
Future
Interstate 905

Public transportation

The Atchison, Topeka and Santa Fe Railway's combined Super Chief-El Capitan pulls into Los Angeles's Union Passenger Terminal on September 24, 1966.
See: Category: Public transportation in Southern California

Communication

Telephone area codes

Colleges and universities

Main article:
List of colleges and universities in Southern California
University of California, Los Angeles
California Institute of Technology

Public and private institutions in the region include five

San Luis Obispo); and private institutions such as the California Institute of Technology, Azusa Pacific University, Chapman University, the Claremont Colleges (Claremont McKenna College, Harvey Mudd College, Pitzer College, Pomona College, Scripps College, Claremont Graduate University and Keck Graduate Institute), Loma Linda University, Loyola Marymount University, Occidental College, Pepperdine University, University of Redlands, University of San Diego and the University of Southern California
.

Parks and recreation areas

Numerous parks provide recreation opportunities and open space. Locations include:

Sports

See also: Freeway Series, Lakers–Clippers rivalry, and Sports in California § Northern California–Southern California rivalry

Major professional sports teams in Southern California include:

Southern California also is home to a number of popular NCAA sports programs such as the UCLA Bruins, the USC Trojans, and the San Diego State Aztecs. The Bruins and the Trojans both field football teams in NCAA Division I in the Pac-12 Conference, and there is a longtime rivalry between the schools.

See also

References

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  2. ^ "State Population Totals and Components of Change: 2010-2019". United States Census Bureau. Archived from the original on January 26, 2020. Retrieved February 8, 2020.
  3. ^ "Figures Show California's Motoring Supremacy". Touring Topics. 8 (2). Los Angeles, California: Automobile Club of Southern California: 38–39. March 1916. Archived from the original on March 15, 2023. Retrieved May 9, 2021.
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    from the original on March 15, 2023. Retrieved May 9, 2021.
  5. ^ "Megaregions". Archived from the original on May 16, 2017. Retrieved October 1, 2014.
  6. ^ The three metropolitan areas are:
    1. Los Angeles–Long Beach–Santa Ana
      (the second largest in the US),
    2. Riverside–San Bernardino–Ontario (the
      Inland Empire
      )       and
    3. San Diego–Carlsbad–San Marcos – see:
      United States metropolitan areas
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  24. ^ "Kern County QuickFacts". United States Census Bureau. April 1, 2020. Retrieved September 3, 2021.
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Further reading

  • Castillo-Munoz, Veronica (2016). The Other California: Land, Identity and Politics on the Mexican Borderlands. University of California Press.
  • Deverell, William; Igler, David, eds. (2013). A companion to California history. John Wiley & Sons.
  • Fogelson, Robert M. (1967). The Fragmented Metropolis: Los Angeles, 1850–1930., focus on planning, infrastructure, water and business.
  • Friedricks, William (1992). Henry E. Huntington and the Creation of Southern California., on Henry Edwards Huntington (1850–1927), railroad executive and collector, who helped build LA and southern California through the Southern Pacific railroad and trolleys.
  • Garcia, Matt. (2001). A World of Its Own: Race, Labor and Citrus in the Making of Greater Los Angeles, 1900–1970.
  • Garcia, Mario T. (1972). "A Chicano Perspective on San Diego History". Journal of San Diego History. 18 (4): 14–21. online
  • Lotchin, Roger (2002). Fortress California, 1910–1961. excerpt and text search, covers military and industrial roles.
  • Mills, James R. (1960). San Diego: Where California Began. San Diego: San Diego Historical Society. revised edition online
  • O'Flaherty, Joseph S. (1972). An End and a Beginning: The South Coast and Los Angeles, 1850–1887.
  • O'Flaherty, Joseph S. (1978). Those Powerful Years: The South Coast and Los Angeles, 1887–1917.
  • Pryde, Philip R. (2004). San Diego: An Introduction to the Region (4th ed.)., a historical geography
  • Shragge, Abraham. (1994). "A new federal city: San Diego during World War II". Pacific Historical Review. 63 (3): 333–361.
    JSTOR 3640970. in JSTOR
  • Starr, Kevin (1997). The Dream Endures: California Enters the 1940s. pp. 90–114., covers 1880s–1940
  • Starr, Kevin (2004). Coast of Dreams: California on the Edge, 1990–2003. pp. 372–381.
  • Starr, Kevin (2011). Golden Dreams: California in an Age of Abundance, 1950–1963. pp. 57–87.

External links

Wikimedia Commons has media related to Southern California.
Wikivoyage has a travel guide for Southern California.

34°00′N 117°00′W / 34.000°N 117.000°W / 34.000; -117.000

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