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Santa Clara County, CA Parking Rules: Curb Color Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Red curb meaning
bus zone only
Established by
Board of Supervisors resolution
Default zone length
100 feet from intersection
Permitted users
commercial or school buses

Summary

In unincorporated Santa Clara County, a red-painted curb marks an official bus zone reserved for commercial or school buses only: the code reserves the color red exclusively for that designation.

City-specific rules exist: Santa Clara, Sunnyvale, San Jose, and Mountain View have their own curb color rules rules that differ from Santa Clara County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Whenever this article establishes a bus zone, the top and face of the curb therein, if any, shall be painted red; and one or more appropriate signs shall be erected to identify the zone.

(Ord. No. NS-1004.121, § 1, 11-3-80)

Sec. B12-142. - Establishment of bus zones. Bus zones shall be established by duly adopted resolution of the Board of Supervisors, and, unless otherwise indicated in the resolution, shall extend 100 feet from the curb or pavement edge of the intersecting street, if any.

(Ord. No. NS-1004.121, § 1, 11-3-80)

Sec. B12-143. - Use of mail deposit zone. No person shall stop, stand or park any motor vehicle in a mail deposit zone except for the purpose of depositing mail in an adjacent mailbox.

(Ord. No. NS-1004.121, § 1, 11-3-80)

Sec. B12-144. - Marking of mail deposit zones. Whenever this article establishes a mail deposit zone, the top and face of the curb of the section so established shall be painted white.

(Ord. No. NS-1004.121, § 1, 11-3-80)

Sec. B12-145. - Mail deposit zones designated. The following described portions of the hereinafter mentioned public highways in the County are hereby designated as mail deposit zones and subject to the prohibition set forth in Section B12-143:

Name of Street Description Hamilton Avenue North side from a point 70 feet east of the extension of the east property line of Hurst Avenue to a point 33 feet to the east thereof. Race Street In front of 259 Race Street.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 65).

Full Breakdown

Sec. B12-141 requires that whenever a bus zone is established under this article, the top and face of the curb there, if any, be painted red, with one or more signs erected to identify the zone. Under Sec. B12-140, only commercial or school buses may stand or park in a bus zone at any time. Bus zones are created by Board of Supervisors resolution (Sec. B12-142) and, unless the resolution says otherwise, extend 100 feet from the curb or pavement edge of the intersecting street. No other curb color in the county code (yellow, white) carries this restriction.

Violations & Fines

Standing or parking a non-bus vehicle in a red-curb bus zone violates the use restriction in Sec. B12-140 and is enforceable as a parking violation once the zone is established and signed.

Frequently Asked Questions

What does a red curb mean in unincorporated Santa Clara County?
It marks an official bus zone. County code requires the curb's top and face to be painted red only where a bus zone has been established by Board resolution.
Can I stop briefly at a red curb to drop someone off?
No. Sec. B12-140 reserves bus zones for commercial or school buses at any time, regardless of how briefly another vehicle stops or stands there.

Sources & Official References

Other rules in Santa Clara County

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Curb Color Rules in Cities Across Santa Clara County