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Napa, CA Sign Regulations: Political Signs (2026)

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

Key Facts

Code Chapter
Napa MC Ch. 17.55 (Sign Ordinance)
Residential Allowance
2 temporary noncommercial signs / parcel
Election Period
Additional signs allowed (Sec. 17.55.120)
Constitutional Limit
Reed v. Gilbert (2015)
Tenant Right
Civil Code Section 1947.15

Summary

Political signs in the City of Napa are protected speech under the First Amendment and must be regulated content-neutrally under Reed v. Town of Gilbert, 576 U.S. 155 (2015). Napa's sign rules are in Chapter 17.55 (Sign Ordinance) of Title 17 (Zoning). Section 17.55.120 permits temporary noncommercial signs without a permit in residential zones, and during election periods each parcel is allowed additional noncommercial signs subject to objective height, location, and lighting requirements. California Government Code Section 65850.4 and Civil Code Section 1947.15 add state preemption and tenant-display protection.

The governing documents may not prohibit posting or displaying of noncommercial signs, posters, flags, or banners on or in a member's separate interest, except as required for the protection of public health or safety or if the posting or display would violate a local, state, or federal law. ... An association may prohibit noncommercial signs and posters that are more than nine square feet in size and noncommercial flags or banners that are more than 15 square feet in size.

View official code

Full Breakdown

After Reed v. S. 155 (2015), any sign rule that singles out 'political' signs for different size, duration, or placement treatment than other noncommercial temporary signs is content-based and presumptively unconstitutional under strict scrutiny. 55 therefore regulates temporary noncommercial signs (political, garage sale, real estate, holiday) under generally applicable size, placement, illumination, and duration rules. 120 (Temporary and Incidental Signs Allowed Without a Permit) provides that in residential zones each parcel is allowed two temporary noncommercial signs at all times, and during any election period each parcel is allowed additional noncommercial signs subject to the chapter's height, location, and lighting requirements.

The ordinance prohibits sign placement in the public right-of-way and on traffic-control devices, and prohibits illumination of temporary residential signs. California state law layers two additional protections. 4 expressly preempts any city sign ordinance that prohibits political signs outright, while allowing reasonable time-place-manner rules. 15 prohibits a landlord from banning a tenant's political signs in a window or on the door of a rental unit, subject to a 6-square-foot size cap and a display window of 90 days before through 15 days after the election.

Caltrans regulates signs on state-highway right-of-way along SR-29, SR-121, SR-221, and other state routes through the Napa Valley; the federal Highway Beautification Act Section 131 governs the federal-aid system.

Violations & Fines

Violations of Napa Chapter 17.55 sign rules are typically resolved through Code Enforcement abatement and administrative citations under the city's penalty schedule (commonly $100 / $200 / $500). Signs placed in the public right-of-way may be summarily removed by city crews. Caltrans removes illegally placed signs along state highways and posts disposal notices. Bad-faith landlord retaliation against a tenant displaying a political sign in violation of Civil Code Section 1947.15 carries up to a $1,000 civil penalty plus attorney fees. Speech-based discrimination claims against content-based enforcement may be brought under 42 U.S.C. Section 1983.

Frequently Asked Questions

Can the City of Napa limit how long I display a political sign?
Only as part of a content-neutral durational limit that applies equally to all temporary noncommercial signs. Reed v. Town of Gilbert (2015) struck down content-based duration limits, and California Government Code Section 65850.4 preempts cities from banning political signs outright. Napa's Section 17.55.120 allows two temporary noncommercial signs per residential parcel at all times, with additional signs during election periods.
How big can my Napa political sign be?
Napa Municipal Code Chapter 17.55 sets temporary-sign size, height, and location limits that apply equally to political and other noncommercial temporary signs. Residential temporary signs are generally limited in area and height with no illumination and no right-of-way placement. Confirm current dimensional limits with the City of Napa Community Development Department before installing.
Can my Napa landlord prohibit campaign signs in my window?
No. California Civil Code Section 1947.15 expressly bars a landlord from prohibiting a tenant's political sign in a window or on the door of a rental unit, subject to a 6-square-foot cap and a display window of 90 days before through 15 days after the election. Bad-faith landlord interference can trigger a $1,000 civil penalty plus attorney fees.

Sources & Official References

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