Sign Regulations in Missouri (2026)

Missouri RSMo 442.404 prohibits homeowners' associations and deed restrictions from banning the display of political…

Columbia, Missouri bars anyone but a public officer from fastening election campaign posters to curbstones, lampposts…

Kansas City lets any residential lot display extra noncommercial signs, capped at 8 square feet and 4 feet tall, from…

Political signs in Springfield, Missouri top out at 6 square feet on residential lots and 34 square feet on business…

Political yard signs in unincorporated St. Charles County need no permit but are capped by size. Code § 405.480(C)(6)…

St. Louis County Code §1003.168 allows political campaign signs for candidates seeking office and other pertinent data…

Cass County caps political campaign signs at thirty-two square feet under Section 400.780(A)(9), and timing follows the…

Independence allows residents to post opinion signs on political and public-interest matters without a permit, but…

Jefferson County allows political signs without a permit if they stay at or under thirty-two square feet, or ninety-six…

Lee's Summit allows political and other noncommercial signs on private property with no permit. Under the Unified…

Garage and yard sale signs are prohibited in the public right-of-way under SLCRO §1003.168 and §710.010. Signs may only…

Garage-sale signs are barred from streets, public property, and utility poles in Independence, and must come down by…

Kirkwood limits garage, estate, moving and yard sales to four off-site directional signs no larger than two feet by…

Garage sale signs in Lee's Summit need no sign permit, but they're not unregulated: the Unified Development Ordinance…

A Springfield yard-sale sign is capped at 4 square feet, must be non-illuminated, and may stay up only two consecutive…

St. Charles County limits garage sale signs to one 4-square-foot sign per residence, posted no more than a day early…

In unincorporated Cass County, a garage sale sign is exempt from the Zoning Order's sign permit and size rules under…

Columbia, Missouri allows one on-premises garage sale sign per street frontage, up to 4 square feet, displayed only…

Florissant allows one on-site garage sale sign plus up to two directional signs, each capped at 6 square feet, but only…

Unincorporated Jackson County lets you post temporary off-premise garage-sale signs without a permit, capped at 90 days…

Jefferson County lets residents post yard and garage sale signs without a permit, but caps them at twelve square feet…

Springfield's Land Development Code lets businesses display an outdoor inflatable, including holiday-themed figures…

Columbia, Missouri exempts holiday and seasonal illuminated displays from the Unified Development Code's exterior…

Independence's sign code bans strings of lights citywide but carves out an exception for temporary holiday decorations…

Kansas City's zoning code exempts temporary holiday light displays entirely from the outdoor lighting article's…

St. Charles County's exterior lighting standards regulate glare and light spillover from residential and commercial…

St. Louis County's zoning lighting rules exempt temporary decorative seasonal lighting entirely, including its ban on…

Boone County allows billboards only in General Commercial, Light Industrial and General Industrial districts near U.S…

Columbia, Missouri prohibits any electronic, digital, tri-vision, or other changeable-copy display on billboards…

Off-premise billboards in unincorporated Jackson County cannot use moving, flashing, or pulsating lighting, which bars…

New LED and digital billboards near interstate and primary highways are banned in St. Louis; only devices permitted…

Cass County caps electronic message and LED signs with moving or variable light at twelve square feet per face under…

Jefferson County bars flashing, blinking or animated signage countywide but carves out programmable electronic message…

Kansas City bans new electronic or digital changeable-copy displays on outdoor advertising signs outright. Only…

Kirkwood bans electronic message centers in the Downtown Historic District and, everywhere else, caps their brightness…

Digital billboards in Lee's Summit need a special use permit and can only go up in the B-P, PI-1 and PI-2 districts…

Electronic off-premise billboards are legal only on designated highways and must hold static images for at least 10…

St. Louis County has no separate digital-billboard category: LED and static advertising signs share the same…

Digital signs are flatly banned in Florissant's Historic District but permitted elsewhere in the city under Section…

Independence requires digital billboard displays to hold each scene for at least eight seconds and lets the Community…

O'Fallon allows digital billboards along its regulated highway corridor, but Section 410.170(B)(5) bans flashing…

Springfield caps electronic message center sign brightness at 0.3 foot-candles above ambient light, requires automatic…

Lee's Summit bans exterior window signs outright: the Unified Development Ordinance lists "window sign, exterior" among…

Springfield sets no coverage cap on signage displayed inside a window, but signs applied to the exterior glass are…

Florissant caps window signage at convenience businesses and package liquor stores: no more than 10% of the window may…

In unincorporated Jackson County, posters or announcements in a window count against your site's sign allowance only if…

Jefferson County caps window signage under its zoning code: permanent signs may cover no more than 15% of a building…

Kirkwood caps window signage at 33% of any single window's area and bans illumination of window signs outright…

St. Charles County caps on-premise window, sidewalk and business sale signs and banners at 32 square feet in Commercial…

St. Louis treats window signs as a standard permitted sign type, not a separately capped category, so they count toward…

Columbia, Missouri doesn't count an ordinary sign placed inside a display case or show window as a regulated 'sign' at…

O'Fallon lets businesses put signs in their windows without a permit, but Section 410.120(A)(14) caps them at twenty…

Along state-maintained highways in unincorporated Cass County, a billboard may only stand within 660 feet of the…

Columbia, Missouri only allows billboards near Interstate 70 or U.S. 63 within sixty feet of the right-of-way in…

Billboards aimed at highway traffic in Florissant are capped at 30 feet above the highway's natural grade (50 feet…

Off-premise billboards facing Independence's divided highways can run up to 750 square feet, while signs on ordinary…

Off-premise signs and billboards along Interstate 70, I-435 and other freeways in unincorporated Jackson County face…

Jefferson County confines new billboards to parcels touching a short list of major routes: Interstate 55, U.S. Highways…

Outdoor advertising signs near interstates and highways are banned citywide except within 660 feet of qualifying…

O'Fallon confines billboards to a narrow band along its interstates: Section 410.170(B)(1)(a) requires a…