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Mobility & Curb Rules in San Mateo County, CA (2026)

1 county-level rule, plus city-specific rules for 1 city in San Mateo County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of San Mateo County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Bike Lane Rules

Section 7.80.010 lets San Mateo County's Director of Public Works, once the Board of Supervisors authorizes it, designate bicycle lanes on unincorporated county roads and post signs and markings that govern how cars and bikes use those lanes, including barring cars from parking in them. The county has no separate ordinance on how cyclists must ride; on-road bicycle conduct is governed by the California Vehicle Code.

Unincorporated San Mateo County Bike Lane Rules

Light Restrictions

San Mateo County Ordinance Code § 7.80.010

The Director of Public Works, upon authorization from the Board of Supervisors, may designate on such streets or portions of streets the existence of bicycle lanes as may be necessary, and shall designate said bicycle lanes by appropriate signs and markings giving effect to bicycle lanes and otherwise regulating the location and use of vehicles and bicycles with respect to them, including but n...

Mobility & Curb Rules by City in San Mateo County

1 cities in San Mateo County have their own mobility & curb rules rules. Each link goes to that city's dedicated page with code citations.

All San Mateo County ordinances

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