Sign Regulations in Hercules, CA (2026)
4 verified sign regulations for Hercules, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Political Signs
Hercules treats political signs as noncommercial speech: on public property, temporary noncommercial signs may go up only at locations the City Council designates by legislation, while on private property owners can swap any legal sign's message for a political one anytime, without a permit, under a content-neutral substitution right.
Hercules Limits Where Political Signs May Go
Significant RestrictionsHercules Municipal Code §§ 13-34.100(4)-(5), 13-34.600(3)
4. Message Neutrality. It is the City's policy and intent to regulate signs in a manner consistent with the U.S. and California constitutions, which are content neutral as to noncommercial speech and do not favor commercial speech over noncommercial speech. 5. Message Substitution. Subject to the property owner's consent, a noncommercial message of any category or content may be substituted, in...
Digital Billboards
Hercules bans blinking or moving animated signs, but the ban explicitly excludes electronic message signs and time-and-temperature displays. Those digital signs still count as changeable copy signs, so they are prohibited unless approved through a master sign program.
Hercules Exempts Digital Signs From Animation Ban
Significant RestrictionsHercules Municipal Code §§ 13-34.302(12), 13-34.700(6)
6. Animated signs that use blinking lights, audible sounds, human or animal generated movements. This restriction does not apply to electronic message signs and time and temperature signs. ... 12. Changeable Copy Signs. Changeable copy signs are prohibited except as approved through a master sign program.
Window Signs
Hercules lets businesses put up window signs without any permit, as long as they're mounted inside the glass, cover no more than 25 percent of the total glassed window area, and sit at least 3 feet back from the window frame so most of the interior stays visible from the sidewalk.
Hercules Window Signs Capped at 25% of Glass
Some RestrictionsHercules Municipal Code § 13-34.500(9)
9. Window Signs. Window signs are allowed; provided, that they are placed on the inside of the window, and occupy no more than 25 percent of the glassed area of all windows, and are at least 3 feet from the window frame of an exterior window and the majority of the interior is visible from the outside of the building.
Freeway-Facing Signs
New freestanding pylon signs are banned in Hercules except on General Commercial-zoned property within 100 feet of the Interstate 80 right-of-way, approved through a master sign program with CEQA review. Even then, the Planning Commission must hold a public hearing before a freeway-oriented pylon sign can go up.
Hercules Restricts Freeway Pylon Signs Near I-80
Significant RestrictionsHercules Municipal Code § 13-34.302(7); § 13-34.103(2)
7. Freestanding Pylon Sign. A freestanding pylon sign is a sign attached to columns erected directly into the ground. Only 1 freestanding pylon sign per 1,000 feet of lot frontage is permitted. The height of a pylon sign is measured from the top of the sign to the ground. A. New freestanding pylon signs are prohibited to be constructed in the City of Hercules except where all of the following c...
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County ordinances apply to unincorporated areas and may supplement Hercules city rules.
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