Fault #10, 2008 (Backyard, Daly City) Daly City is located just south of San Francisco and is the largest city in San Mateo County. Daly City is built along a cliff where the San Andreas runs along the base of. It is an active landslide that does take down homes along with the dirt and rock. The San Andreas Fault departs land here before returning onshore near Stinson Beach in Marin County.