Ross is a small incorporated town in Marin County, California, United States, just north of San Francisco. Ross is located 1.5 miles (2.4 km) west-southwest of San Rafael, at an elevation of 36 feet (11 m). The population was 2,338 at the 2020 census. The town is bordered by San Rafael to the east, Kentfield to the south, San Anselmo to the north, and the Mount Tamalpais protected watershed to the west.

Kentfield is a census-designated place (CDP) in Marin County, California, United States, just north of San Francisco. Kentfield is located 2 miles (3 km) southwest of downtown San Rafael, at an elevation of 115 feet. The population was 6,808 at the 2020 census. The ZIP codes are 94904 for street addresses, and 94914 for PO boxes, and are shared with the neighboring community of Greenbrae.