La Cañada Flintridge is a small and affluent city in Los Angeles County, California, United States whose population at the 2010 census was 20,246, down from 20,318 at the 2000 census. According to Forbes, as of 2010, La Cañada Flintridge ranks as the 143rd most expensive U.S. city to live in, with a median home price of $1,321,367.
During the Spanish and Mexican eras, the area was known as Rancho La Cañada.
Prior to the city's incorporation in 1976, the area consisted of two distinct communities, La Cañada and Flintridge (the latter named after developer and United States Senator Frank P. Flint). Flintridge comprises the southern part of the city, covering the northern flank of the San Rafael Hills, but more generally including most areas south of Foothill Blvd. The eastern part of the city, even north of Foothill Blvd., was also originally considered Flintridge and is still home to the Flintridge Riding Club and Flintridge Preparatory School. Reference to the entire city is often shortened to just 'La Cañada' but seldom to just 'Flintridge'. The full city name specifically does not have a hyphen in it, to illustrate unity between the communities that were once separately known as La Cañada and Flintridge.
La Cañada Flintridge had the longest city name in California with 18 letters until the year 2000, when the title was ceded to Rancho Santa Margarita.