From a total population of 12,808, San Marino has a median age of 46.1. The average age of males, in San Marino, is 44.1 while the average age of females is 47.2. When you compare this to median age of California, San Marino is 10.5 years older.
The median income of individuals, in San Marino, is $72,861 while the average household income is $119,300. When comparing the median income of people living in San Marino to the rest of California, the average income in San Marino is $42,955 more.