Northern California is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California, spanning the northernmost 48 of the state's 58 counties. Northern California in its largest definition is determined by dividing the state into two regions, the other being Southern California. The main northern 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. Northern California is also home to Silicon Valley, the global headquarters for some of the most powerful tech and Internet-related companies in the world, including Meta, Apple, Google, and Nvidia.
The San Gabriel Valley, often referred to by its initials as SGV, is one of the principal valleys of Southern California, with the city of Los Angeles directly bordering it to the west, and occupying the vast majority of the southeastern part of Los Angeles County. Surrounding landforms and other features include the following:
Central California is generally thought of as the middle third of the U.S. state of California, north of Southern California and south of Northern California. It includes the northern portion of the San Joaquin Valley, part of the Central Coast, the central hills of the California Coast Ranges and the foothills and mountain areas of the central Sierra Nevada.
Districts in California geographically divide the U.S. state into overlapping regions for political and administrative purposes.
Urban Search and Rescue California Task Force 4 or CA-TF4 is a FEMA Urban Search and Rescue Task Force based in Oakland, California. CA-TF4 is sponsored by the Oakland Fire Department.
California's State Assembly districts are numbered 1st through 80th, generally in north-to-south order.
Law enforcement in Los Angeles County is conducted by a variety of law enforcement agencies.
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 is a sports association of 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.
The California Digital Newspaper Collection (CDNC) is a freely-available, archive of digitized California newspapers; it is accessible through the project's website. The collection contains over six million pages from over forty-two million articles. The project is part of the Center for Bibliographical Studies and Research (CBSR) at the University of California Riverside.
