Jackson County, MO Sign Regulations: Window Signs (2026)
Key Facts
- Exempt threshold
- Up to 50% of window area
- Over threshold
- Entire poster counts as signage
- Site sign cap
- 1.5 sq ft per linear ft frontage
- Geographic scope
- Unincorporated county only
Summary
In unincorporated Jackson County, posters or announcements in a window count against your site's sign allowance only if they cover more than 50% of that window's area, per the Unified Development Code.
(b) Posters or announcements located in window areas not exceeding 50% of an individual window area shall not be calculated as an element of total allowable site signage. An excess of the 50% will cause the entire area of the poster or announcements to be calculated as an element of total allowable site signage.
e. Exempt Signs. Except as noted below, the following signs are excluded from regulation
under this chapter. Exemption from the sign regulations does not exempt property
owners from duties and responsibilities established within deed restrictions or covenants.
1. Signs not exceeding four (4) square feet in area that are customarily associated
with residential use, and are not of a commercial nature, such as signs identifying
names or numbers or signs on mailboxes;
2. Signs erected by, or on behalf of, or pursuant to the authorization of a
governmental body, including legal notices, identification and informational
signs and traffic, directional or regulatory signs;
3. Official signs of a non-commercial nature erected by public utility companies;
4. Flags, pennants or insignia of any governmental body when not displayed in
connection with a commercial promotion or as an advertising device, and
provided that not more than two (2) governmental flags, pennants or insignia
Full Breakdown
Under UDC Section 24007.1(d)(8)(b), window posters and announcements covering up to 50% of an individual window's area are not counted toward the property's total allowable sign area. Cross 50% and the entire poster or announcement area gets added into the site's total signage calculation, which in commercial and industrial districts is capped at 1.5 square feet per linear foot of street frontage under 24007.1(d)(5). This applies only to unincorporated Jackson County. Kansas City, Independence, Lee's Summit, Blue Springs, Raytown and Grandview enforce their own separate sign codes.
Violations & Fines
A poster exceeding the 50% window threshold has its full area folded into the site's total sign allotment; pushing the property over its frontage-based cap can trigger Director of Public Works review, denial of further signage, or an order to remove or reduce signs.
Frequently Asked Questions
Does this window sign rule apply in Kansas City?
What happens if a store poster covers 70% of a window?
Sources & Official References
Other rules in Jackson County
Compare Jackson County to another location·View the Missouri sign regulations overview
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