Sign Regulations in Iowa (2026)
23 rules on the books across Iowa, 8 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Political Signs
Rules for posting political campaign signs on your property, including size limits, how early you can put them up, and when they must come down.
Iowa: statewide
StatewideSome RestrictionsIowa Code 68A.405 and 68A.406 set uniform statewide rules for political sign attribution statements, placement, and…
Read full rule →Sioux City
Some RestrictionsSioux City caps election signs at 16 to 32 square feet cumulative depending on the district, bars them within 300 feet…
Read full rule →Polk County
Light RestrictionsPolk County lets temporary political signs go up without a sign permit, but only starting 70 days before the election…
Read full rule →Black Hawk County
Few RestrictionsBlack Hawk County, Iowa's zoning sign chapter exempts political signs on private property from the county's own permit…
Read full rule →Davenport
Few RestrictionsDavenport treats political and campaign signs as noncommercial-message signs, allowed in every zoning district with no…
Read full rule →Johnson County
Few RestrictionsCities and the county regulate signs through zoning codes, not a countywide rule. Since Reed v. Town of Gilbert (2015)…
Read full rule →Garage Sale Signs
Where you can place signs advertising a garage or yard sale, including restrictions on utility poles, medians, and public right-of-way.
Davenport
Some RestrictionsA Davenport garage sale may post one non-illuminated sign, no larger than four square feet, on the sale property. It…
Read full rule →Linn County
Some RestrictionsUnincorporated Linn County treats garage sale signs as temporary signs: 32 square feet max, under 12 feet tall, and…
Read full rule →Polk County
Some RestrictionsThe Zoning Ordinance has no garage-sale-sign-specific rule. Small temporary/portable signs are treated as portable…
Read full rule →Black Hawk County
Light RestrictionsUnincorporated Black Hawk County, Iowa exempts 'For Sale' and 'garage sale' signs under six square feet from its zoning…
Read full rule →Cedar Rapids
Light RestrictionsCedar Rapids restricts signs advertising a Garage, Yard, or Estate Sale to the seller's own parcel: Cedar Rapids…
Read full rule →Sioux City
Light RestrictionsSioux City lets individual garage sales run without a permit, but sale signage still can't be placed in the public…
Read full rule →Holiday Displays
Rules for seasonal decorations, lights, inflatables, and lawn displays, including the sign-permit exemptions most codes give them and any limits on timing, size, or placement.
Sioux City
Light RestrictionsHoliday light displays and decorations count as "decorative signs" under Sioux City's zoning code and don't need a sign…
Read full rule →Davenport
Few RestrictionsDavenport allows holiday decorations on private property freely: the zoning sign code specifically exempts temporary…
Read full rule →Digital Billboards
Rules governing digital and electronic billboards, including size limits, brightness and dwell-time standards, and the ongoing legal fight in cities like LA.
Sioux City
Significant RestrictionsSioux City requires digital billboards sit at least 500 feet from residential and sensitive uses, bars animation, and…
Read full rule →Linn County
Some RestrictionsLinn County permits digital billboards in HC, GC and I districts, but requires each message to hold for at least one…
Read full rule →Polk County
Some RestrictionsPolk County allows LED electronic displays on off-site billboards, but only under the standards of Iowa Administrative…
Read full rule →Window Signs
Limits on the percentage of window area that may be covered by signs in storefronts, including transparency rules for safety visibility into businesses.
Freeway-Facing Signs
Restrictions on commercial signs visible from freeways, including height, illumination, and outdoor advertising act compliance.
Cedar Rapids
Significant RestrictionsCedar Rapids bars any billboard oriented toward and meant to be viewed from Interstate 380 between Wilson Avenue SW and…
Read full rule →Sioux City
Significant RestrictionsWithin 660 feet of a primary highway or Interstate 29, Sioux City hands sign regulation to the Iowa DOT, requiring an…
Read full rule →Iowa City
Some RestrictionsA legally nonconforming sign within 1,000 feet of an interstate highway right-of-way in Iowa City can swap or replace…
Read full rule →Johnson County
Some RestrictionsNo sign may stand in the right-of-way of a county road, state highway, or interstate highway anywhere in unincorporated…
Read full rule →Polk County
Some RestrictionsOff-site billboards in unincorporated Polk County are capped at 50 feet of height, must sit outside 100 feet of…
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