The city of San Marino was incorporated in 1913; the first mayor was General George S. Patton, Sr. As of 1990, 13,000 people were calling San Marino home. San Marino has one of the best school districts in California, with nearly 99% of the high school graduates going on to 2 or 4 year colleges. Today, San Marino is one of the wealthiest cities per capita in the United States. Prices of homes for sale in San Marino range from $350,000 to $8,000,000.