San Marino is a city in Los Angeles County, California, United States. Incorporated on April 12, 1913, the city was designed by its founders to be uniquely residential, with expansive properties surrounded by beautiful gardens, wide streets, and well maintained parkways. The city is located in the San Rafael Hills. The population was 13,147 at the 2010 census.
In 2010, Forbes Magazine ranked the city as the 63rd most expensive area to live in the United States, with the median list price of a single family home at US$1,987,500. Median household income in the city is 7th highest in Los Angeles County at $158,855 per year.