Bus routes #120, #121 and #123 from Sam Trans serves Colma. Sam Trans route #120 serves Colma BART, Metro Center, Serramonte, Southgate, Westlake, Daly City BART and Brunswick & Templeton. Route #121 goes to Skyline College, Westview, Fairmont, Serramonte, Colma BART, Seton Medical Center, Daly City BART and Lowell & Hanover. Bus roue #123 serves Skyline College, King Plaza, Serramonte, Metro Center, Serra Center and Colma BART.
SamTrans goes around San Mateo County. Also, Bart goes to San Fransisco, other locations in San Mateo County, Oakland, San Leandro, Castro Valley, Dublin and Pleasanton. Transfer at Milbrae by taking Bart to get to Santa Clara County.