The mostly residential city of San Marino is a small and more suburban part of Southern California. Like most homes in Los Angeles County, neighborhoods in the area showcase the affluent ways of those living in the city. Forbes magazine ranked one of the city's zip codes as the 63rd most expensive area to live in the U.S.
The 2010 U.S. Census of Population and Housing reported there were 13,147 residents of San Marino. The population increased 1.6 percent since 2000, while the state's overall population rose 10 percent.
Data shows there were 4,477 housing units at an average density of 1,186.2 square mile. The majority of them, 91.4 percent, were owner-occupied and 8.6 were rented. The median value of owner-occupied housing units between 2006 and 2010 was over $1 million while the average rent paid each month was over $2,000.