California (State of California) is located on the west coast of the United States, close to the Pacific Ocean, referred to as "California", is a very famous state in the United States. California has an area of 411,013 square kilometers and a population of more than 40 million. California is the most economically developed state in the United States. California was known as the Golden State in the past, and famous cities here include Los Angeles, San Francisco, Hollywood and so on. California's population is predominantly white, with a large number of Asians, and Chinatown. California is also the most developed agricultural state in the United States, and its manufacturing industry is also very developed. Silicon Valley is the center of manufacturing and electronic information industry. California is close to the sea and has the most important ports. Among them, Los Angeles International Airport and San Francisco International Airport are important international airports, and there are many highways in the state. The abbreviated zip code for California is CA, and the zip codes for major cities are as follows: Sacramento is 94203-89589. The Sonoma zip code is 95476. The San Jose zip code is 95101-95196. The zip code for Los Angeles is 90001-90189. The zip code for San Diego is 92101-92199. The zip code for San Francisco is 94101-94188.