Overview of California

California is located in the southwestern United States, with an area of approximately 42397 square kilometers, making it the third largest state in the country, after Alaska and Texas. California borders the Pacific Ocean to the west, Oregon to the north, Nevada to the east, Arizona to the southeast, and Mexico to the south. California has a total length of 1600 kilometers from north to south and a width of 413 kilometers from east to west, with a diverse range of natural landscapes including magnificent canyons, mountains, and dry deserts.

California has a population of approximately 39.56 million (estimated in 2018), making it the most populous state in the United States. The main ethnic groups include Hispanic (39.1%), non Hispanic white (37.2%), Asian (15.2%), African American (6.5%), mixed ethnic (3.9%), Native American and Alaska Native (1.6%), and Hawaiian or other Pacific Islander (0.5%). California is composed of 58 counties, with the northern 48 counties belonging to Northern California and the southern 10 counties belonging to Southern California 15.

California has a huge economy, with a total economic output of $3.86 trillion and an average of $80400 per person by 2023. California's GDP ranks first in the United States, with the computer and information industry, life sciences, environmental protection industry, agriculture, international trade, entertainment and service industry, and aerospace development being its main industries. In terms of agriculture, California is a major agricultural state in the United States, mainly growing vegetables such as carrots, spinach, and cauliflower, and fruits such as citrus, grapes, and lemons. In terms of industry, California has 22200 manufacturers and is the largest manufacturing state in the United States. The service industry accounts for up to 70% of California's economy, including tourism, transportation, and information services.

Southern California mainly includes Los Angeles County, Orange County, Riverside County, San Bernardino County, San Diego County, etc., and is an important part of California. Los Angeles is known as the "City of Angels" with an area of 1215 square kilometers and a population of 3.82 million. It is the second largest city in the United States and an important industrial, financial, shipping, and trade center. San Diego covers an area of 855 square kilometers and has a population of 1.39 million. It is mainly engaged in manufacturing, high-tech, and military industries, with a mild and pleasant climate. It is an important tourist and health resort on the West Coast.

California is one of the most economically developed states in the United States, and its total economic output also holds an important position globally. As of 2023, California's nominal GDP reached $3.86 trillion, a year-on-year increase of 6.06%, accounting for 14.12% of the total nominal GDP in the United States.

The economic pillar industries in California are diverse, including finance, insurance, real estate, rental and leasing, professional and business services, manufacturing, information industry, as well as government and government enterprises. These industries occupy an important position in California's economy and drive the state's economic development.

California's manufacturing industry is highly developed, with important manufacturing centers such as Los Angeles, San Francisco, and San Diego, covering multiple fields including aerospace, electronics, refining, petrochemicals, and food processing. In addition, the Santa Clara Valley in Silicon Valley is known for its electronics industry, while the Central Valley is a center for the food processing industry.

The tourism industry in California is also thriving, with charming beaches, pleasant climate, and excellent facilities, attracting a large number of tourists. In addition, California also has multiple art museums, internationally renowned orchestras and symphonies, as well as cultural and educational institutions such as Hollywood, further promoting the development of cultural tourism industry.