Johnson County, IA Sign Regulations: Political Signs (2026)
Key Facts
- Regulated by
- City & county zoning codes
- Content-based rules
- Unconstitutional (Reed 2015)
- Neutral limits
- Size, height, placement OK
- Private yard
- Allowed, usually no permit
- Right-of-way
- Prohibited
Summary
Cities and the county regulate signs through zoning codes, not a countywide rule. Since Reed v. Town of Gilbert (2015), those codes must stay content-neutral: Iowa City or Coralville cannot give a political yard sign a shorter window or special limit because of its message.
any city is hereby empowered to regulate and restrict the height, number of stories, and size of buildings and other structures, the percentage of lot that may be occupied, the size of yards, courts, and other open spaces, the density of population, and the location and use of buildings, structures, and land for trade, industry, residence, or other purposes.
Full Breakdown
Sign authority lives in each city's zoning code and, for unincorporated land, the Johnson County zoning ordinance, all bounded by the First Amendment. In Reed v. Town of Gilbert the U.S. Supreme Court held that a sign code treating a sign differently because of its message is content-based and rarely survives. So Iowa City, Coralville, North Liberty, and Johnson County may set neutral limits on size, height, setback, and placement, but none may cap how long a political sign stays up while letting other temporary signs linger. A sign on your own lawn generally needs no permit. Signs in the public right-of-way or on utility poles are prohibited and removed.
Violations & Fines
A rule limiting political signs by their message, through a shorter display period or a message-based permit, is unconstitutional under Reed and unenforceable. Signs placed in a right-of-way or on public property are removed by the city.
Frequently Asked Questions
Can I put a political sign in my yard?
Can the city limit how long my sign stays up?
Sources & Official References
- [1]Iowa Code
Other rules in Johnson County
Compare Johnson County to another location·View the Iowa sign regulations overview
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