San Gregorio, CA Real Estate Residential Properties Residential Properties for Sale in San Gregorio, CA Between $0 - $4,200,000 Residential Properties for Sale in San Gregorio, CA Between $11,400,000 - $11,500,000 Lots and Land Properties Lots and Land Properties for Sale in San Gregorio, CA Between $0 - $700,000 Data services provided by IDX Broker