10 county-level rules, plus city-specific rules for 1 city in Polk County, Iowa.
Verified from official government sources
In unincorporated Polk County, chickens and livestock are governed by the county Zoning Ordinance under Iowa Code Chapter 335. Bona fide agricultural use is exempt from zoning, so genuine farms need no permit; hobby fowl on small residential lots may be restricted by district. Cities set their own hen rules.
Iowa Code 335.2(1)
no ordinance adopted under this chapter applies to land, farm houses, farm barns, farm outbuildings, or other buildings or structures that are primarily adapted, by reason of nature and area, for use for agricultural purposes, while so used.
In unincorporated Polk County, dogs may not run at large. The Sheriff's Animal Control enforces county Ordinance 18-068 and Iowa Code 351; loose dogs are impounded and taken to the Animal Rescue League of Iowa (ARL). Cities like Des Moines set their own leash laws.
Iowa Code 351.37(1)
A dog shall be apprehended and impounded by a local board of health or law enforcement official if the dog is running at large and the dog is not wearing a valid rabies vaccination tag or a rabies vaccination certificate is not presented to the local board of health or law enforcement official.
Polk County has no breed-specific ban. County Ordinance 18-068 and Iowa Code 351 regulate dogs by behavior — an individual dog is declared 'dangerous' based on its conduct, not its breed. Iowa law lets counties add controls, but Polk County's rules are behavior-based, not pit-bull or breed bans.
Iowa Code 351.41
This chapter does not limit the power of any city or county to prohibit dogs and other animals from running at large...and does not limit the power of any city or county to provide additional measures for the restriction of dogs and other animals for the control of rabies and for other purposes.
Polk County sets no specific beekeeping ordinance. In the unincorporated county, hives fall under the Zoning Ordinance — treated as an agricultural use, so genuine farm apiaries are exempt under Iowa Code 335.2. Cities like Des Moines set their own hive limits and setback rules for urban beekeeping.
Iowa bans private ownership of dangerous wild animals statewide, and this applies in Polk County. Under Iowa Code Chapter 717F you cannot own big cats, bears, wolves, primates, large constrictors, venomous snakes, crocodilians and similar species. Common pets — dogs, cats, and typical caged animals — are not covered.
Iowa Code 717F.3
Except as otherwise provided in this chapter, a person shall not do any of the following: 1. Own or possess a dangerous wild animal. 2. Cause or allow a dangerous wild animal owned by a person or in the person's possession to breed. 3. Transport a dangerous wild animal into this state.
Polk County has no ordinance specifically banning the feeding of wildlife such as deer or waterfowl. Problem feeding that draws nuisance animals is handled through the county nuisance provisions, and deer are managed by the Iowa Department of Natural Resources. Some Polk County cities do restrict deer or waterfowl feeding.
In unincorporated Polk County, livestock is a zoning matter under Iowa Code Chapter 335. Genuine agricultural use is exempt from county zoning (Iowa Code 335.2), so working farms keep cattle, horses, hogs and sheep without a county permit. Hobby livestock on small residential lots is limited by the zoning district.
Iowa Code 335.2(1)
no ordinance adopted under this chapter applies to land, farm houses, farm barns, farm outbuildings, or other buildings or structures that are primarily adapted, by reason of nature and area, for use for agricultural purposes, while so used.
Animal hoarding is addressed through Iowa's animal-neglect law (Iowa Code 717B.3), which applies in Polk County. Keeping so many animals that they lack food, water, sanitation, or shelter is animal neglect. The Polk County Sheriff and the Animal Rescue League of Iowa investigate and can seize animals from hoarding situations.
Iowa Code 717B.3(1)(c)
A person commits animal neglect when the person owns or has custody of an animal, confines that animal, and fails to provide the animal with...Sanitary conditions free from excessive animal waste or the overcrowding of animals to the extent that the animal's health or life is endangered.
Polk County's Animal Control Ordinance (18-068) covers licensing, vaccination and dangerous animals but sets no fixed household pet cap for the unincorporated county. Excessive numbers are handled through nuisance and animal-neglect law. Cities such as Des Moines set their own pet-count limits.
Polk County's Animal Control Ordinance (18-068) covers cats as well as dogs — including rabies vaccination and at-large control — and impounded cats go to the Animal Rescue League of Iowa. Iowa's rabies-tag statute targets dogs, but cats fall under the county ordinance and state bite-reporting law.
Iowa Code 351.38
It shall be the duty of the owner of any dog, cat or other animal which has bitten or attacked a person or any person having knowledge of such bite or attack to report this act to a local health or law enforcement official.
1 cities in Polk County have their own animal ordinances rules. Each link goes to that city's dedicated page with code citations.
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