San Marcos is located in San Diego County, CA. The population is 86,756, making San Marcos the 8th largest city in San Diego County.
There are 26 public schools in San Marcos with an average Homefacts rating of A-. The total crime rate for San Marcos is very low , and there are 36 registered sex offenders residing in the city. Unemployment in San Marcos is moderate and the median home sales price is $0. Detailed and up-to-date San Marcos property reports are available for any property address.
Cities near San Marcos include Lake San Marcos, Vista and Escondido.