Some of the weird laws in Iowa are genuine statutes still sitting in the code, while others are fabrications that have been copy-pasted across the internet for decades. The margarine labeling rules, the Sunday car sales ban, and the requirement that drug dealers buy a tax stamp are all real. The mustache-kissing prohibition and the five-minute kiss limit are not.
Myths That Keep Showing Up
Three claims appear on nearly every “weird Iowa laws” list online: men with mustaches can’t kiss women in public, couples can only kiss for five minutes, and one-armed piano players must perform for free. None of these exist.
The mustache-kissing ban has been investigated by journalists who searched the entire Iowa Code and found nothing. The five-minute kiss rule is equally baseless. Iowa’s actual disorderly conduct statute covers fighting, raucous noise, threatening gestures, and disrupting lawful assemblies, with no mention of kissing or any time limit on affection.1Iowa Legislature. Iowa Code 723.4 – Disorderly Conduct The one-armed piano player story is a confirmed urban legend with no basis in state law or any discoverable local ordinance.
These probably trace back to mid-20th-century humor books that invented or exaggerated local laws for entertainment, then got recycled online until people assumed someone had verified them. Nobody did. If a list includes any of the three, treat the rest of it with suspicion.
The Margarine Labeling Law
Iowa Code 191.2 imposes labeling requirements on margarine that go well beyond what you’d expect at a modern grocery store. Any package of colored margarine sold at retail must weigh one pound or less, display the word “oleomargarine” or “margarine” in lettering at least as large as any other text on the label, and list every ingredient on both the inside wrapper and outside package.2Iowa Legislature. Iowa Code 191.2 – Dairy Products and Imitations If coloring has been added, that fact must appear on both wrappers too.
The historical context explains the oddity. Iowa’s dairy industry held enormous political influence in the mid-20th century, and margarine was treated as a threat to butter sales. The original version of the law went further still, requiring manufacturers to stamp “oleo” directly onto the product in four places on each stick.3Iowa Legislature. Laws of the Fifty-Fifth General Assembly – Chapter 97 Several other dairy states passed similar rules, but most have since repealed theirs. Iowa’s version persists because nobody has prioritized cleaning it up.
No Car Sales on Sundays
Iowa is one of roughly a dozen states that prohibit licensed motor vehicle dealers from doing business on Sundays. Under Iowa Code 322.3, a dealer cannot buy or sell vehicles at retail on Sundays, whether directly or through any agent or employee, and cannot advertise an intention to do so. The only carve-out is for large mobile homes exceeding certain size thresholds.4Iowa Legislature. Iowa Code 322.3 – Prohibited Acts
This is a classic blue law rooted in religious-observance traditions, but dealerships have not fought hard to repeal it. Many actually favor the mandatory day off because it levels competition: if every lot is closed, no one loses sales to a rival staying open seven days a week. If you want a Sunday test drive in Iowa, you’re out of luck.
The Drug Tax Stamp
Possibly the most ironic entry in the Iowa Code is Chapter 453B, which requires anyone who possesses illegal drugs to first purchase a tax stamp from the state. This is not a joke and not a myth. The law exists so prosecutors can add a tax evasion charge on top of drug possession, giving them extra leverage in plea negotiations. The absurd premise, that a person committing a crime should pay a state tax on the contraband, is the whole point.
Tires, Studs, and What Can Stick Out
Iowa Code 321.442 restricts what can protrude from your tires on any highway. No tire may have blocks, studs, flanges, cleats, spikes, or any non-rubber protuberance projecting beyond the tread surface. Three exceptions apply: farm machinery with protuberances that won’t damage the road, tire chains in snow or ice conditions, and studded tires with ice grips projecting no more than one-sixteenth of an inch beyond the tread, which are only legal between November 1 and April 1. School buses and fire trucks get a year-round pass on studded tires.5Iowa Legislature. Iowa Code 321.442 – Projections on Wheels The scheduled fine for a violation is $30.6Iowa Judicial Branch. State of Iowa Compendium of Scheduled Violations and Scheduled Fines
Livestock and Horses in the City
Multiple Iowa cities flatly prohibit agricultural animals within city boundaries. Des Moines bans horses, cattle, swine, sheep, goats, chickens, and other agricultural animals from any lot or parcel within the corporate limits unless the property qualifies as an acreage. Even on qualifying acreages, the animals must be kept at least 75 feet from any neighboring residential dwelling, and letting any such animal roam freely in the city is separately prohibited.7City of Des Moines. Ordinance 14,866 – Agricultural Nondomestic Animals and Exotic Animals
Smaller towns get oddly specific about horses. Carter Lake’s code prohibits anyone from riding a horse on any sidewalk, public street, or alley within the city.8American Legal Publishing. Carter Lake Code of Ordinances – 55.27 Riding of Horses Prohibited Des Moines prohibits anyone from pushing, drawing, leading, or driving any horse onto a sidewalk except when crossing to enter a yard or lot.9City of Des Moines. Ordinance No. 15,000 These rules date to when horses were a primary mode of transportation and hoof damage was a real municipal concern.
Projectiles, Slingshots, and Local Weapons Rules
Discharging a firearm inside city limits is a simple misdemeanor in most Iowa municipalities. What makes some ordinances quirky is how broadly they’re written. Davenport prohibits firing any “cannon, gun, pistol, or other firearm” anywhere in the city, and lumps cannons and firecrackers into the same sentence. The only exception requires a special permit from the chief of police with city council approval, specifically for organized nonprofit clubs.10City of Davenport, IA. City of Davenport Code Chapter 9.44 – Discharging Firearms
Ames goes further, regulating not just firearms but slingshots and bows within city limits. Anyone who fires a projectile from a bow, air gun, or slingshot in a way that could hit a person, break a window, or damage property faces a municipal infraction carrying a $50 fine for the first offense and $100 for each repeat violation. A peace officer can instead charge it as a simple misdemeanor.11City of Ames. Ames Municipal Code – Chapter 17 Offenses Miscellaneous
Mount Vernon prohibits throwing any stone, stick, or other projectile into or across any public street, alley, or public place, or at any vehicle or person.12American Legal Publishing Corporation. Mount Vernon, Iowa Code of Ordinances – 41.09 Throwing and Shooting It’s a flat ban, not a get-permission-first situation. The ordinance likely exists because Mount Vernon sits near a college campus and someone decided codifying “don’t throw rocks at cars” was worth the ink.
Cedar Rapids and the Clairvoyance Ban
Cedar Rapids once made it illegal to use “clairvoyant powers” within city limits. The ordinance was roughly 82 years old when the city council finally approved the first of three readings to repeal it in January 2003. Critics argued the ban could infringe on freedom of religion, since some spiritual practices involve fortune-telling or palmistry as religious expression. Most residents had no idea the law existed until the repeal brought it attention.
What a Violation Actually Costs
Most quirky Iowa laws, when they carry any penalty, fall into the simple misdemeanor category. A simple misdemeanor carries a fine between $105 and $855, and the court can order up to 30 days in jail either instead of or on top of the fine.13Justia Law. Iowa Code 903.1 – Maximum Sentence for Misdemeanants In practice, the stranger and more obscure the ordinance, the less likely anyone is to be prosecuted under it.
Many traffic and equipment violations use Iowa’s scheduled fine system instead of the full misdemeanor process. Scheduled fines for motor vehicle offenses range from $5 for basic parking violations up to $260 for fraudulent use of registration, with most minor offenses falling between $30 and $135.14Iowa Legislature. Iowa Code 805.8A – Motor Vehicle and Transportation Scheduled Violations Court costs of $55 plus a 15% surcharge get added on top, so a $30 scheduled fine ends up around $90 once everything is included.6Iowa Judicial Branch. State of Iowa Compendium of Scheduled Violations and Scheduled Fines
Why Iowa Hasn’t Repealed Them
The usual question is why these laws haven’t been scrubbed. The answer is legislative bandwidth. State lawmakers have finite session time and political capital, and cleaning up an unenforced margarine rule or a horse-on-sidewalk ban doesn’t compete with education funding or tax policy for attention. Repealing a law requires the same process as passing one: committee hearings, multiple readings, floor votes. Nobody wants to spend that effort on a statute that isn’t causing problems.
Some states use sunset review, where regulations must be periodically reauthorized or they automatically expire. Iowa doesn’t have a comprehensive sunset system, so unusual statutes stay on the books until someone affirmatively removes them. The doctrine of desuetude, which holds that long-unenforced laws lose validity, has limited traction in American courts. A prosecutor could theoretically dust off most of these statutes and file charges. The practical safeguard isn’t the law expiring but the discretion of local officials who have better things to do.