Lake San Marcos is located in San Diego County, CA. The population is 4,555.
There are 0 public schools in Lake San Marcos with an average Homefacts rating of NA. The total crime rate for Lake San Marcos is very low , and there are 0 registered sex offenders residing in the city. Unemployment in Lake San Marcos is moderate and the median home sales price is $0. Detailed and up-to-date Lake San Marcos property reports are available for any property address.
Cities near Lake San Marcos include San Marcos, Carlsbad and Vista.