San Mateo County, CA Parking Rules: Street Parking Limits (2026)
Key Facts
- Who sets limits
- Board of Supervisors
- Trigger
- Posted signs or curb markings
- Repeat violation window
- 1 hour after citation, if unposted
- Scope
- Unincorporated County roads only
Summary
County-posted signs and curb markings set stopping, standing and parking limits on unincorporated San Mateo County streets.
The Board of Supervisors shall designate such stopping, standing or parking restrictions or prohibitions as may be necessary, and shall designate said restrictions or prohibitions on such streets, portions of streets or County-owned property by appropriate signs or markings giving effect to such parking, stopping or standing restrictions or prohibitions. When authorized signs and/or curb markings are in place giving notice of such prohibition or limitation, no person shall stop, stand or park any vehicle in violation of such signs and/or curb markings. Whenever the stopping, standing or parking of a vehicle has been prohibited, restricted or limited as to time by an ordinance or resolution, the continued standing or parking of such vehicle after a citation therefor has been issued constitutes a separate and additional violation of the provisions for which the citation was issued when such standing or parking continues for an additional period longer than the maximum permissible period of parking in such space or location after issuance of such citation, or if no such period of time is designated, when such stopping, standing or parking after a citation therefor continues for an additional period longer than one hour.
(Prior code § 3731.0; Ord. 850, 07/21/49; Ord. 3234, 06/19/90; Ord. 4195, 10/21/03; Ord. 4268, 07/12/05)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 47).
Full Breakdown
Ordinance Code § 7.28.010 lets the Board of Supervisors designate stopping, standing and parking restrictions on unincorporated County streets, marked by signs or curb paint. Once signs or curb markings are posted, parking in violation of them is prohibited, and letting a cited vehicle continue standing past the posted time limit (or one hour if no limit is posted) is a separate, additional violation. Applies only to County-maintained roads outside the 20 incorporated cities.
Violations & Fines
Parking against posted signs/markings, or leaving a cited vehicle beyond the time limit, is a separate additional violation.
Frequently Asked Questions
Is unposted street parking restricted in unincorporated San Mateo County?
What happens if I leave a cited car parked too long?
Sources & Official References
Other rules in San Mateo County
California rules heatmap·Compare San Mateo County to another location·View the California parking rules overview
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