Outdoor Lighting in Jefferson County, MO (2026)
1 rule for unincorporated Jefferson County, Missouri.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Jefferson County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Billboard Lighting
Jefferson County lets billboards along its approved highway corridors light their faces electrically, but Section 400.4310(A)(7) bans any flashing, blinking or intermittent lighting on or of a billboard face, mirroring the flashing-light ban that applies to signs generally.
Jefferson County Billboard Illumination Rule
Some RestrictionsJefferson County, MO Unified Development Ordinance § 400.4310(A)(7) (Billboards)
Billboards may be illuminated by electrical lighting of the billboard face. However, no flashing, blinking or intermittent lighting on or of billboard faces shall be allowed.
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