Backyard Pig Laws in Wyoming: Zoning, Permits, and What You Need to Know

Wyoming’s wide-open spaces and strong property rights culture make it one of the more pig-friendly states in the American West — but that does not mean anything goes. Whether you want a full-sized hog on a rural homestead or a potbelly pig in a suburban backyard, the rules that govern your situation are set at the local level, not the state level, and they vary considerably from one city or county to the next.

Before you bring a pig home, you need to understand how Wyoming classifies pigs, what your zoning district allows, whether your municipality requires a permit, and whether your HOA has anything to say about it. This guide walks you through each of those layers so you can make an informed decision and stay on the right side of the law.

Are Backyard Pigs Legal in Wyoming?

The short answer is yes — but with significant conditions attached. In Wyoming, the legality of keeping a pet pig depends on where you reside within the state. There is no statewide law that bans backyard pigs outright, and the state does not impose a blanket prohibition on pig ownership in residential areas. What it does instead is leave that decision to individual cities, towns, and counties.

Domestic pigs and pot-bellied pigs are not prohibited at the state level, and the Wyoming Livestock Board regulates domestic livestock and poultry. That means the state’s primary role is animal health and import oversight — not telling you whether you can keep a pig in your backyard. That authority belongs to your local government.

In rural and agriculturally zoned areas, pigs are generally permitted with minimal friction. The situation becomes more complicated in residential zones within cities and towns, where livestock restrictions are common. It is important to check with your local government or visit their official website to determine whether owning a pet pig is allowed in your area, as zoning regulations typically dictate which types of animals are permitted in residential areas versus agricultural or rural zones.

Pro Tip: Before purchasing a pig, call your city or county planning and zoning office and ask two specific questions: Does your zoning district allow livestock or swine? And does your municipality treat potbelly or miniature pigs differently from farm hogs? The answers will tell you everything you need to know upfront.

How Wyoming Classifies Pigs — Livestock vs. Pet

Classification is one of the most consequential legal questions a pig owner in Wyoming faces. How your local government categorizes a pig — as livestock, as a companion animal, or as something in between — determines which set of rules applies to you entirely.

At the state level, Wyoming Game and Fish Commission regulations provide a clear answer. For the purpose of Wyoming Game and Fish Commission Chapter 10 regulations, domestic swine (Sus domesticus) are listed among animals considered domestic, placing them in the same regulatory category as cattle, goats, sheep, and horses — not companion animals like dogs or cats.

Wyoming’s animal cruelty statutes reinforce this distinction. The state defines “household pet” as any privately owned dog, cat, rabbit, guinea pig, hamster, mouse, gerbil, ferret, bird, fish, reptile, amphibian, or similar domesticated animal kept as a pet — and pigs are not included in that list. This matters because livestock and pets are subject to entirely different regulatory frameworks.

Many cities classify pigs as agricultural animals rather than domestic pets due to their size, and as such they are often restricted or prohibited from residential properties. However, some municipalities do carve out exceptions for miniature or potbelly breeds, treating them more like companion animals when they fall below a certain weight threshold. You cannot assume your city follows one approach or the other — you have to check the specific ordinance.

If you are already familiar with how Wyoming handles other backyard animals, the pattern will look familiar. The backyard chicken laws in Wyoming follow the same structure: no statewide ban, but local jurisdictions set their own rules with real enforcement behind them.

Zoning and Property Requirements for Keeping Pigs in Wyoming

Zoning is the single biggest legal hurdle for most Wyoming residents who want to keep backyard pigs. Even if pigs are not explicitly banned in your city, your property’s zoning classification may effectively prohibit them.

In unincorporated rural areas, land zoned for agricultural use — commonly designated AG or A-1 — typically permits livestock keeping with minimal restrictions, and on these properties you are generally free to keep animals as long as you meet basic animal welfare and fencing standards. This applies to pigs just as it does to goats, cattle, and other farm animals. Many rural Wyoming counties impose no minimum lot size for livestock on agriculturally zoned land, though they may still regulate stocking density.

The situation becomes more complex in residential zones. Across Wyoming’s larger cities and towns, residential zoning categories — such as R-1 (single-family residential) or R-2 (low-density residential) — frequently prohibit livestock outright or restrict it to specific lot sizes. In these zones, pigs are typically treated as livestock and face the same restrictions as cattle or horses.

Some Wyoming municipalities create a middle ground through conditional use permits (CUPs) or special use permits (SUPs), which allow residents in otherwise-restricted zones to keep livestock if they can demonstrate their property meets certain standards. Even if livestock keeping is listed as a permitted use in your zone, you may still need a conditional use permit or special use permit before proceeding, and you should always verify with your county or city planning department before assuming approval is automatic.

Setback requirements are another layer to account for. Setback rules vary by town but generally range from 3 to 50 feet from property lines or neighboring homes for animal-keeping structures in Wyoming. Pig enclosures, shelters, and feeding areas will typically need to comply with similar setback standards. Check your local code for the specific distances that apply to livestock structures in your zoning district.

Pro Tip: To find your exact zoning classification, contact your county planning and zoning office or search your municipality’s code on a platform like Municode, which hosts ordinances for Wyoming cities including Cheyenne and Casper.

Size, Weight, and Breed Restrictions in Wyoming

Wyoming has no statewide size, weight, or breed restrictions for pigs. Any limits of this kind come from individual city or county ordinances, and they are far from uniform across the state.

In rural, agriculturally zoned areas, breed and size restrictions are rare. A farmer keeping full-sized commercial hogs on AG-zoned land faces no state-imposed weight cap. The practical constraints there are about stocking density, waste management, and odor nuisance — not the breed or size of the animal itself.

In urban and suburban settings, the picture changes. Even if owning pet pigs is allowed under zoning regulations, some cities impose size restrictions on these animals based on weight or height limits. These restrictions are most commonly applied to potbelly or miniature pig breeds when a city chooses to allow them as companion animals rather than full livestock. A city might permit a pig weighing under 100 pounds in a residential zone while prohibiting any pig above that threshold.

While owning a pet pig is generally permitted within weight restrictions, there are exceptions based on local ordinances or HOA rules. The key takeaway is that you cannot rely on a pig’s breed name or marketing label — “teacup,” “micro,” or “miniature” — to determine legality. What matters is how your specific city classifies and regulates the animal, and whether it falls within any weight or size parameters your local ordinance establishes.

If your city does not address miniature or potbelly pigs separately in its code, the default classification as livestock will apply, and standard livestock restrictions will govern your situation. This is one area where a direct call to your city’s animal control or zoning department is worth more than any amount of online research.

Zone Type	Typical Pig Allowance	Size/Weight Limits	Common Conditions
Agricultural (AG / A-1)	Generally permitted	Usually none	Fencing, stocking density, waste management
Rural Residential	Often permitted with conditions	Varies by municipality	Minimum lot size, setbacks, CUP may be required
Suburban Residential (R-1/R-2)	Often restricted or prohibited	Weight caps if allowed (e.g., under 100 lbs)	CUP or SUP required; neighbor consent common
Urban/City Core	Typically prohibited	N/A	Livestock ban applies; no exceptions in most cases

Permits, Licenses, and Registration Requirements in Wyoming

Permit requirements for backyard pigs in Wyoming operate on two levels: state-level animal health requirements and local-level land use or animal-keeping permits. Both matter, and neither replaces the other.

At the state level, the Wyoming Livestock Board (WLSB) is the primary regulatory authority for domestic swine. The Wyoming Livestock Board regulates domestic livestock and poultry, and its authority covers animal health, disease control, and import requirements. If you are bringing a pig into Wyoming from another state, you must comply with the WLSB’s import rules.

All animals imported into Wyoming must be accompanied by a paper or digital Interstate Certificate of Veterinary Inspection (ICVI), and an Import Permit or Shipping Number when required, issued in compliance with the Livestock Board’s rules and all applicable state and federal animal health regulations. This applies to pigs brought in from out of state for any purpose, including as backyard pets or companion animals.

At the local level, permit requirements vary by municipality. Certain municipalities may require permits for owning a pet pig, and these permits often involve obtaining documentation from a veterinarian. Some cities may require a conditional use permit through the planning department, while others handle pig ownership through their animal control division. A handful of Wyoming municipalities require no permit at all for pigs kept on appropriately zoned land.

Some towns may require additional licensing for owning pigs as pets, and some ordinances include restrictions on the number of pigs allowed per household or setback distances from property lines. These local requirements are separate from — and in addition to — any state-level health or import documentation you may need.

Important Note: The Wyoming Livestock Board, Wyoming Department of Health, and your county or municipality may each have separate requirements that apply simultaneously. Contact the Wyoming Livestock Board for state-level animal health rules, and your local planning or animal control office for land use permits. Do not assume compliance with one level satisfies the other.

If you are interested in how permit structures work for other backyard animals in Wyoming, the beekeeping laws in Wyoming offer a useful parallel — state-level registration requirements coexist with local zoning rules, much as they do for pigs.

HOA and Neighborhood Restrictions on Backyard Pigs in Wyoming

Even if your zoning district permits pigs and you have obtained every required permit, your homeowners association (HOA) can still say no. HOA rules are private contractual agreements, not government regulations, but they are legally enforceable — and in many cases they are stricter than local ordinances.

While the state may allow the possession or importation of various animal species, local laws, ordinances, and covenants may restrict or prohibit them. That phrase “covenants” is the key word — it refers to the Covenants, Conditions, and Restrictions (CC&Rs) that govern HOA communities. If your CC&Rs prohibit livestock, farm animals, or “any animal other than household pets,” that language almost certainly covers pigs, regardless of breed or size.

HOA restrictions on pigs in Wyoming typically fall into a few common categories:

• Blanket livestock bans — CC&Rs that prohibit all farm animals, livestock, or swine by name. These are the most common and the hardest to work around.
• Odor and nuisance clauses — Provisions that prohibit any animal that creates odors, attracts pests, or constitutes a nuisance to neighbors. Even if pigs are not mentioned specifically, these clauses are often applied to them.
• Pet-only policies — Rules that restrict residents to “common household pets,” which in most HOA interpretations means dogs, cats, and similar companion animals. Pigs — even miniature breeds — often fall outside this definition.
• Weight or size limits — Some HOAs that permit pets impose weight caps (often 25–50 lbs) that would exclude most pig breeds, including many marketed as miniature.

If you live in an HOA community, review your CC&Rs carefully before purchasing a pig. Look not just for the word “pig” or “swine” but also for broader terms like “livestock,” “farm animals,” “agricultural animals,” and “nuisance animals.” While owning a pet pig is generally permitted within weight restrictions, there are exceptions based on local ordinances or HOA rules, and it is important to check city or county regulations where you reside before bringing home a pet pig.

If your CC&Rs are ambiguous, contact your HOA board in writing and ask for a formal ruling before you commit to a purchase. Getting that answer in writing protects you if a dispute arises later. Keep in mind that HOA boards can also amend their rules, so a current approval does not guarantee permanent permission.

For a broader look at how Wyoming handles animal ownership across species, the pit bull laws in Wyoming and hedgehog ownership laws in Wyoming show how the same layered system — state rules, local ordinances, and HOA covenants — applies to very different types of animals. The same due diligence applies whether you are keeping a pig, a dog, or an exotic pet.

Wyoming’s approach to backyard pig ownership rewards residents who do their homework. The state stays out of your way at the top level, but local governments and private HOAs fill that space with rules that can be strict. Check your zoning district, confirm permit requirements with both the Wyoming Livestock Board and your local planning office, and read your HOA documents before you bring a pig home. Those three steps will tell you everything you need to know about whether a backyard pig is legal — and practical — where you live.