This is a list of regions of California, organized by location.
California is a U.S. state on the western coast of North America. Covering an area of 163,696 sq mi (423,970 km2), California is among the most geographically diverse states. The Sierra Nevada, the fertile farmlands of the Central Valley, and the arid Mojave Desert of the south are some of the major geographic features of this U.S. state. It is home to some of the world's most exceptional trees: the tallest, most massive, and oldest. It is also home to both the highest and lowest points in the 48 contiguous states. The state is generally divided into Northern and Southern California, although the boundary between the two is not well defined. San Francisco is decidedly a Northern California city and Los Angeles likewise a Southern California one, but areas in between do not often share their confidence in geographic identity. The US Geological Survey defines the geographic center of the state at a point near North Fork, California.
Southern California is a geographic and cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban agglomeration in the United States. 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.
Greater Los Angeles is the second-largest metropolitan region in the United States with a population of 18.5 million as of 2021, encompassing five counties in southern California extending from Ventura County in the west to San Bernardino County and Riverside County in the east, with Los Angeles County in the center and Orange County to the southeast. According to the U.S. Census Bureau, the Los Angeles–Anaheim–Riverside combined statistical area covers 33,954 square miles (87,940 km2), making it the largest metropolitan region in the United States by land area. Of this, the contiguous urban area is 2,281 square miles (5,910 km2), the remainder mostly consisting of mountain and desert areas. In addition to being the nexus of the global entertainment industry, Greater Los Angeles is also an important center of international trade, education, media, business, tourism, technology, and sports. It is the 3rd largest metropolitan area by nominal GDP in the world with an economy exceeding $1 trillion in output.
Scouting in California has a long history, from the 1910s to the present day, serving thousands of youth in programs related to their environments.
Northern California is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California. Spanning the state's northernmost 48 counties, its main population centers include the San Francisco Bay Area, the Greater Sacramento area, the Redding, California area south of the Cascade Range, and the Metropolitan Fresno area. Northern California also contains redwood forests, along with most of the Sierra Nevada, including Yosemite Valley and part of Lake Tahoe, Mount Shasta, and most of the Central Valley, one of the world's most productive agricultural regions.
The State Scenic Highway System in the U.S. state of California is a list of highways, mainly state highways, that have been designated by the California Department of Transportation (Caltrans) as scenic highways. They are marked by the state flower, a California poppy, inside either a rectangle for state-maintained highways or a pentagon for county highways.
California's State Assembly districts are numbered 1st through 80th, generally in north-to-south order.
All types of floods can occur in California, though 90% are caused by riverine flooding. Such flooding generally occurs as a result of excessive rainfall, excessive snowmelt, excessive runoff, levee failure or a combination of these sources. Below is a list of flood events that were of significant impact to California.
The Southern California Association of Governments (SCAG) is the Metropolitan Planning Organization (MPO) of six of the ten counties in Southern California, serving Imperial County, Los Angeles County, Orange County, Riverside County, San Bernardino County, and Ventura County. San Diego County's MPO is the San Diego Association of Governments, which is an unrelated agency.
The following outline is provided as an overview of and topical guide to the U.S. state of California.
The California Community College Athletic Association (CCCAA) is a sports association community colleges in the U.S. state of California. It oversees 108 athletic programs throughout the state. The organization was formed in 1929 as the California Junior College Federation to unify programs in Northern and Southern California.
Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, the population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the United States. The name was derived from the city of Riverside, which is the county seat.
The 2024 California State Senate election will be held on Tuesday, November 5, 2024, with the primary election being held on June 4, 2024. Voters in the 20 odd-numbered districts of the California State Senate will elect their representatives. The elections will coincide with the elections for other offices, including the state Assembly..