Bus Routes

San Mateo is a strategic location on the peninsula and CalTrain runs through its center. The count’s transit is called SamTrans and it is designed to compliment San Francisco’s CalTrain, Bart, and Muni and VTA.  The San Francisco Municipal Transportation Agency (SFMTA) manages the Muni. Since 1912 the Muni fleet has grown to include cable cars, streetcars, light rail, electric trolley coaches, and hybrid buses. It connects the peninsula with the many bus routes in Santa Clara Valley managed by the VTA (Valley Transit Authority).

The two major San Mateo transit hubs between CalTrain and SamTrans are at San Mateo Transit Center and Hayward Transit Center.

SamTrans conducted several studies on traffic in 2017 revealing the extent of the record levels of congestion on its roads.  They have divided San Mateo County bus traffic into five types:

Coastal: Routes serving the coast community – from Half Moon Bay to Pacifica.

Community: Infrequent, community-specific routes which do not operate during off-peak hours.

Local: Routes designed to carry passengers between major passenger hubs, employment centers, and residential neighborhoods.

Multi-City: Routes serving multiple cities, including some offering express or late-night service.

Mainline: Long-distance routes serving significant portions of the county, generally at higher frequency.


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1250 San Carlos Ave. San Carlos, CA 94070-130603

(650) 508-6448

Open: Weekdays: 7 am – 7 pm / Weekends & Holidays: 8 am – 5 pm

In addition to public transportation there are private buses that are employer-sponsored shuttles between San Francisco and Palo Alto tech companies. Bauer Transportation provides transportation for companies like video game developer Electronic Arts. Loop Transportation drops off riders at Facebook, Google, and Apple. Compass (SFO Airporter) buses workers to Apple, as well as Yahoo and Genentech. WeDriveU also shuttles employees to Google. Details on specific routes can be found at commute.org