Whatcom County, WA Sign Regulations: Freeway-Facing Signs (2026)

Whatcom County Code § 20.80.215 sets separate setbacks for off-premises advertising signs (billboards), overriding the general setback table in § 20.80.210. Everywhere in unincorporated Whatcom County a billboard must stay 15 feet from any road right-of-way, 10 feet from side and rear lot lines unless those abut a right-of-way, 500 feet from any residence or residential zone, 1,000 feet from any church, school, cemetery, park, open space or historical landmark, and 50 feet from any intersection. Subsection (3) creates the freeway-specific exception: a billboard oriented toward Interstate 5 may stand as close as five feet to the interstate right-of-way, but only when every agency with jurisdiction over that right-of-way signs off on the placement.

Section 20.80.410(3) layers zoning-district limits on top: off-premises signs are banned everywhere except along arterial roads or Interstate 5 in the General Commercial or Industrial zones, and even there they need a conditional use permit reviewed under WCC § 22.05.026. A qualifying sign is capped at 288 square feet per face and 25 feet in height, must sit at least 500 feet from the next off-premises sign, can be back-to-back but never V-shaped, and may carry no more than two advertisements per side. The code also freezes the total supply county-wide at 18 off-premises sign structures, based on permits and state highway approvals in place as of April 30, 1990. Signs that became nonconforming under the 1990 rules had until April 30, 1996 to comply or be abated.