Sign Regulations in DuPage County, IL (2026)
5 county-level rules, plus city-specific rules for 1 city in DuPage County, Illinois.
Verified from official government sources
Political Signs
DuPage County lets temporary political signs go up in any zoning district starting 60 days before an election and requires removal within 7 days after, capping total copy area at 10 square feet per zoning lot and 4 feet in height, under Zoning Ordinance Section 37-1104(E).
DuPage County Political Sign Timing & Size Limits
Light RestrictionsDuPage County Zoning Ordinance § 37-1104(E)
E.Temporary Political Signs:1.Temporary political signs may be located in any zoning district provided that they are erected not more than sixty (60) days before an upcoming election, and must be removed within seven (7) days following an election.2.The total copy area for all political signs shall not exceed ten (10) square feet of total copy area per zoning lot. No such sign shall exceed four...
Garage Sale Signs
DuPage County bans garage-sale signs on utility poles and trees and bars them from the public right-of-way unless the road agency allows it.
DuPage County Garage Sale Sign Placement Rules
Some RestrictionsDuPage County Zoning Ordinance Sec. 37-1103 (General Provisions), items A.3–A.4
3. No sign or sign structure shall be attached to a tree, telephone pole or other utility pole or structure. 4. No sign shall be erected or located in a public right-of-way except as established by the authorized public entity responsible for the right-of-way.
Digital Billboards
DuPage County bars any electronic display sign within 500 feet of an interstate highway or state tollway, and everywhere else caps LED and digital signs at a 10-second static image, 5,000 nits by day and 500 nits from dusk to dawn, under Zoning Ordinance Section 37-1103(C).
DuPage County Digital Sign & LED Billboard Rules
Significant RestrictionsDuPage County Zoning Ordinance § 37-1103.C
C.Electronic Display Techniques: Including digital display, light emitting diodes (LED's), electronic messaging, moving, fluctuating signs: The following general requirements shall apply in each zoning district hereinafter specified. ... 1.Within five hundred feet (500′) of Interstate Highway or State Toll Authority Roadway no sign or portion thereof may be established or operate using electron...
Window Signs
Temporary window signs in DuPage County business districts cannot cover more than 25% of a show window's surface area, while permanent window signs are treated as wall signs and must meet the wall-sign standard for the zoning district, under Zoning Ordinance Section 37-1103.
DuPage County Window Sign Coverage Limits
Some RestrictionsDuPage County Zoning Ordinance § 37-1103(A)(10), (B)(2)
10.Permanent Window Signs: Permanent window signs shall conform to the requirements for wall signs under the provisions of the district in which they are located. ... 2.Temporary Window Signs: In all business districts, temporary window signs located inside of show windows shall occupy not more than twenty-five percent (25%) of the surface area of such windows. In all other districts, temporary...
Freeway-Facing Signs
DuPage County lets signs permitted under the state Highway Advertising Control Act of 1971 stand near interstates and federal-aid highways, but only if they also meet the county's own zoning chapter, and it bans advertising signs outright in public rights-of-way, railroad rights-of-way and utility easements under Zoning Ordinance Section 37-1103.
DuPage County Highway Advertising Sign Rules
Some RestrictionsDuPage County Zoning Ordinance § 37-1103(A)(2), (B)(3)
2.All signs permitted under the Highway Advertising Control Act of 1971, as amended, shall be permitted therein provided such signs conform to the provisions of this chapter. ... 3.Advertising Signs: Advertising signs within all public rights-of-way, railroad rights-of-way and utility easements shall be prohibited.
Sign Regulations by City in DuPage County
1 cities in DuPage County have their own sign regulations rules. Each link goes to that city's dedicated page with code citations.
All DuPage County ordinances
See every category we cover for DuPage County: parking, noise, fences, fires, animals, pools, and more.
DuPage County Ordinance Hub →