Irvine is an incorporated city in Orange County, California, United States. It is a planned city, mainly developed by the Irvine Company since the 1960s. Formally incorporated on December 28, 1971, the 66 square mile (171 km2) city has a population of about 217,686 as of January 1, 2010. It has annexed in the past an undeveloped area to the north, and has also annexed the former El Toro Marine Corps Air Station, most of which is planned to be converted into the Orange County Great Park.Because of its good schools, jobs, and housing, the city was chosen in 2008 by CNNMoney.com as the fourth best place to live in the United States. In June 2010, the Federal Bureau of Investigation reported that Irvine had the lowest violent crime rate among cities in the United States with populations of more than 100,000, and in August 2008 the Census Bureau ranked Irvine as having the seventh highest median income among cities in the United States with populations of more than 65,000.

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