Sign Regulations in Snohomish County, WA (2026)
4 county-level rules, plus city-specific rules for 4 cities in Snohomish County, Washington.
Verified from official government sources
Political Signs
In unincorporated Snohomish County political signs are exempt from zone bans and number/square-footage limits, but they must not obstruct driver sight distance, must meet right-of-way rules, and must obey height and lighting limits.
Political sign rules in unincorporated county
Some RestrictionsSCC 30.27.070
No section of this code prohibiting the use of signs within specified zones, or regulating the total number or square footage of signs on a property, shall apply to political signs; (3) Signs erected upon the right-of-way of any public road shall comply with the requirements of SCC 13.10.050(5); (4) No political sign is permitted that obstructs sight distance requirements in accordance with t...
Garage Sale Signs
In unincorporated Snohomish County a single-family residence may display one unlighted name sign up to two square feet per face. Real-estate signs advertising sale or lease may be up to 15 square feet per building site under SCC 30.27.010.
Garage-sale and residential signs
Some RestrictionsSCC 30.27.020; SCC 30.27.010
A residence may display one unlighted single- or double-faced sign, not to exceed two square feet in area per face, containing the name of the occupant... signs not exceeding 15 square feet in area for each building site may be displayed for the purpose of advertising the sale or lease of the real property upon which displayed.
Digital Billboards
SCC 30.27.080(8) caps a digital billboard face at 500 square feet, requires an eight-second minimum message hold with a one-second transition, and forces the display dark or a 'full black' image if more than half the sign malfunctions. Non-digital billboards may run up to 1,344 square feet under subsection (7).
Digital Billboard Rules in Snohomish County
Significant RestrictionsSCC 30.27.080(8)
(8) Digital billboards shall have a maximum sign area not to exceed a total of 500 square feet per sign structure and are subject to the following: (a) For the purposes of this subsection sign structures with single-faced, back-to-back and v-type signs are considered one structure. The maximum sign area for a single sign face shall not exceed 500 square feet. (b) The minimum message display tim...
Window Signs
In the Urban Center zone, SCC Table 30.27.047(1) caps any single window sign at 25 percent of the window area, and limits all window signs on that window, permanent and temporary combined, to 50 percent of the window area. Elsewhere, SCC 30.27.045(6) sets a flat 25 percent cap for window-integral signs.
Window Sign Coverage Limits in Snohomish County
Some RestrictionsSCC 30.27.047; Table 30.27.047(1)
Window | Painted on or attached to a window and is visible to pedestrian or vehicular traffic | See maximum area per sign face | Not applicable | 25% of the area of a window and the total area of all window signs, including both permanent and temporary, shall not exceed 50% of the window area | No additional requirements
Sign Regulations by City in Snohomish County
4 cities in Snohomish County have their own sign regulations rules. Each link goes to that city's dedicated page with code citations.
5 verified rules • Digital Billboards, Freeway-Facing Signs
5 verified rules • Digital Billboards, Garage Sale Signs
4 verified rules • Digital Billboards, Holiday Displays
3 verified rules • Freeway-Facing Signs, Garage Sale Signs
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