Sign Regulations in Columbia, MO (2026)
6 verified sign regulations for Columbia, Missouri, sourced directly from the municipal code and official government pages.
Verified from official government sources
Political Signs
Columbia, Missouri bars anyone but a public officer from fastening election campaign posters to curbstones, lampposts, poles, bridges, or trees on public streets, while noncommercial signs on private property in Boone County follow content-neutral size and height limits.
Columbia, MO Election Sign Posting Rules
Some RestrictionsColumbia Code of Ordinances § 29-4.8(c)(2)
No person, except a public officer or an employee in the performance of a public duty, shall fasten any sign or notice of any kind on any curbstone, lamppost, street or sidewalk surface, pole, bridge or tree upon a public street, except for any banner attached to a city street light standard for which an attachment permit has been issued. This prohibition includes, but is not limited to, advert...
Garage Sale Signs
Columbia, Missouri allows one on-premises garage sale sign per street frontage, up to 4 square feet, displayed only during the sale: no permit required under the Unified Development Code's sign standards in Boone County.
Garage Sale Sign Rules in Columbia, Missouri
Light RestrictionsColumbia Code of Ordinances § 29-4.8(d)(1)(iii), Table 4.8-2
Table 4.8-2: Residential Use Signs - Other ... Garage Sale ... Type: Advertise garage sale conducted on premises. Maximum Number: 1/each street abutting the premises. Maximum Area: 4 sq. ft./sign. Location: On premises. Other: Signs are only permitted during the time of the sale.
Holiday Displays
Columbia, Missouri exempts holiday and seasonal illuminated displays from the Unified Development Code's exterior lighting standards, but any seasonal light fixture still cannot be aimed to create glare or spill light onto neighboring property in Boone County.
Columbia, MO Seasonal Lighting Exempt From UDC
Light RestrictionsColumbia Code of Ordinances § 29-4.5(d)(1)(vi)
Seasonal decorations that include illuminated displays are exempt from this section except that no light fixture that is part of a seasonal display shall be aimed or directed to create glare or light spillage.(vii)This section shall not apply to the installation of an outdoor lighting structure if an application for a building permit involving the installation of that structure was received by ...
Digital Billboards
Columbia, Missouri prohibits any electronic, digital, tri-vision, or other changeable-copy display on billboards citywide, and the Unified Development Code separately bans digital signs outright in every zoning district across the city in Boone County.
Columbia, MO Bans Digital Billboard Displays
Heavy RestrictionsColumbia Code of Ordinances § 29-4.8(e)(2)(P)
No billboard shall have any electronic, digital, tri-vision or other changeable copy display. (3) Civic signs. One on-premises freestanding sign shall be allowed for any religious institution or governmental entity per street block in accordance with section 29-4.8 (f)(1). One on-premises illuminated wall sign for each street frontage shall be allowed in accordance with section 29-4.8 (f)(2)....
Window Signs
Columbia, Missouri doesn't count an ordinary sign placed inside a display case or show window as a regulated 'sign' at all, unless it's digital or animated.
Columbia, MO Window Sign Rules
Light RestrictionsColumbia Code of Ordinances § 29-1.11 (definition of "Sign")
Sign. A structure that is arranged, intended, designed or used as an advertisement, announcement or direction; and includes a sign, sign screen, billboard, poster panel and advertising devices of every kind, but does not include signs placed on the inside of display cases or show windows fronted with glass which do not project more than six (6) inches from the outside surface of the building wa...
Freeway-Facing Signs
Columbia, Missouri only allows billboards near Interstate 70 or U.S. 63 within sixty feet of the right-of-way in commercial or industrial zones, and every billboard must be oriented toward that interstate or freeway traffic, not toward Boone County side streets.
Columbia, MO Freeway Billboard Orientation Rule
Significant RestrictionsColumbia Code of Ordinances § 29-4.8(e)(2)(i)-(ii)(A)
Billboards shall be allowed in areas zoned M-N, M-C, M-DT, or a PD district permitting commercial uses, M-BP, or IG, provided that the location is within sixty (60) feet of the nearest edge of the right-of-way of: (A) Any interstate (I-70); or (B) Any freeway (U.S. 63); or (C) Any other highways where the city is mandated by law to allow billboards. (ii) Regulations. All billboards shal...
Looking for Boone County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Columbia city rules.
Sign Regulations in Boone County →