Sign Regulations in Wilmington, DE (2026)
2 verified sign regulations for Wilmington, Delaware, sourced directly from the municipal code and official government pages.
Verified from official government sources
Digital Billboards
Wilmington prohibits changing, flashing, and illuminated digital signs in residential zoning districts, with a narrow exception for official public works and DelDot detour or closure notices under City Code Chapter 41.
Wilmington Bans Flashing Digital Signs In Residential Zones
Significant RestrictionsWilmington City Code § 41-93
Notwithstanding any provision of this chapter to the contrary, it shall be unlawful to erect, display or use any changing, flashing illuminated signs in any residential zoning districts within the city, except those giving public works and/or DelDot information such as street closings and detour routes.
Window Signs
On the Market Street Mall, permanent interior window signs are capped at 10% of the display window area, and temporary sale signs at 25%.
Wilmington Market St Mall Window Sign Cap
Some RestrictionsWilmington City Code § 42-542(f)(5)d, (7)e
Permanent signs affixed to or placed inside or attached to the inside surface of a display window...shall cover no more than ten percent of a display window area fronting a street. ... While a sale of goods or services is being conducted..., temporary "sale," "coming soon," "closing out sale," or similar signs may be displayed...provided the aggregate area of such signs does not exceed 25 perce...
Looking for New Castle County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Wilmington city rules.
Sign Regulations in New Castle County →