Backyard Pig Laws in Oregon: What You Need to Know Before Getting a Pig
June 24, 2026
Oregon is one of the more nuanced states when it comes to keeping pigs outside of a traditional farm setting. Whether you’re drawn to a potbellied pig as a companion animal or you want to raise a small swine for personal use, the rules you’ll need to follow depend heavily on where you live, what breed you choose, and how much land you have.
State law sets a broad framework, but Oregon cities and counties layer their own zoning codes, animal ordinances, and permit requirements on top of it. What’s perfectly legal in a rural county may be flatly prohibited in a suburban neighborhood — and vice versa for miniature breeds. Reading this guide before you bring a pig home can save you from a costly mistake.
Are Backyard Pigs Legal in Oregon?
The short answer is: it depends on where you live and what kind of pig you want to keep. Oregon does not have a single statewide law that bans or universally permits backyard pigs. Instead, legality is determined by a patchwork of local zoning codes, city ordinances, and county regulations.
In rural and agricultural zones across the state, keeping pigs is generally allowed without special permission beyond standard livestock management practices. In urban and suburban areas, however, most cities restrict or outright prohibit standard-sized swine. Miniature or potbellied pigs occupy a middle ground — many cities that ban full-sized pigs carve out specific allowances for them, provided they meet strict size and weight criteria.
Portland is a clear example of this split approach. It is unlawful to have or keep any live pigs or swine for a period longer than three days in Portland — unless the animal qualifies as a miniature pig under the city’s specific definition. If you live outside city limits or in an unincorporated area, your county’s land use and zoning rules will govern what you can and cannot keep.
Pro Tip: Before purchasing any pig, call your local planning or zoning office and ask specifically about swine — not just “livestock.” Pigs are sometimes regulated under a separate section of the municipal code from chickens or goats.
If you’re already familiar with how Oregon handles other backyard animals, you may have noticed a similar city-by-city pattern. The backyard chicken laws in Oregon follow the same general structure: state law sets the floor, and local governments decide the details.
How Oregon Classifies Pigs — Livestock vs. Pet
Under Oregon state law and federal guidance, pigs are classified as livestock — not pets. Pigs still fall into the legal description of livestock according to the USDA and the majority of city governments. This classification has real consequences for where you can keep them, what permits may apply, and how your property must be zoned.
That said, miniature breeds occupy a softer category in some jurisdictions. Miniature potbellied pigs are commonly considered companion animals rather than livestock due to their smaller stature and minimal risk they pose in terms of noise disturbance or property damage. Some Oregon cities have responded to this distinction by writing separate provisions specifically for miniature pigs, treating them more like a pet than a farm animal for zoning purposes.
Oregon has established its own set of laws regarding pet pigs, differentiating between those classified as “miniature” and “non-miniature” breeds. This distinction matters most in urban areas, where a standard-sized pig would be prohibited but a qualifying miniature breed might be allowed on any residential lot.
The Oregon Department of Agriculture’s (ODA) Animal Health Program, under the direction of the Oregon State Veterinarian, is responsible for protecting the health of Oregon livestock. Because pigs are livestock under state law, the ODA has oversight authority over swine health, disease traceability, and movement — even for animals kept as pets.
| Pig Type | Typical Classification | Urban Allowance | Rural Allowance |
|---|---|---|---|
| Standard / Farm Swine | Livestock | Usually prohibited | Generally permitted |
| Miniature / Potbellied Pig | Livestock (sometimes companion animal) | Permitted with restrictions in some cities | Generally permitted |
Zoning and Property Requirements for Keeping Pigs in Oregon
Zoning is the single biggest factor in whether you can legally keep a pig in Oregon. Agricultural (A), rural residential (RR), and farm-use zones typically allow swine without issue. Standard residential zones — R1, R2, and similar designations — almost always restrict or prohibit full-sized pigs and may only allow miniature breeds under specific conditions.
In Portland, the city’s zoning code draws a clear line. Allowances are made for lots 20,000 square feet or greater that allow agricultural uses through Title 33: Zoning, or that have a conditional use permit. In some zones, agricultural use is allowed by right. In other zones, the Conditional Use Review is required, or the use may be prohibited.
For miniature pigs specifically, Portland takes a more permissive stance. Up to two miniature pigs may be kept on any lot if the pig’s maximum height is no greater than 22 inches at the shoulder and it weighs no more than 150 pounds. This applies across all residential lot sizes within city limits, making miniature pigs one of the few swine options available to urban Portland residents.
Setback requirements also apply to enclosures and shelters. Structures in a livestock facility must be located at least 3 feet from side and rear property lines and at least 10 feet from the front property line in Portland. Other Oregon cities may set different distances, so always verify with your local planning department.
Space requirements inside the enclosure matter too. Miniature goats, sheep, and pigs each must be provided a minimum of 200 square feet of usable shelter or pen area under Portland’s livestock code. This is a meaningful requirement — 200 square feet per animal adds up quickly on a standard urban lot.
Pro Tip: If you live in an unincorporated area of Oregon, check with your county planning office rather than the nearest city. County zoning maps often allow agricultural uses on parcels that look suburban but are technically outside city jurisdiction.
Size, Weight, and Breed Restrictions in Oregon
Oregon cities that allow any pigs at all in residential zones almost universally tie that permission to strict size and weight limits. The miniature pig — commonly the potbellied variety — is the breed most likely to qualify under these local rules.
Portland’s code is the most detailed and widely referenced standard in the state. Up to two miniature pigs (commonly referred to as Miniature Vietnamese, Chinese or Asian Potbelly pigs) may be kept on any lot if the pig’s maximum height is no greater than 22 inches at the shoulder and it weighs no more than 150 pounds. Both conditions must be met simultaneously — a pig that is short enough but overweight would not qualify.
Breed documentation can be required at any time. Upon request from the City Administrator, animal keepers must produce documentation that their animal is a recognized miniature breed and weighs no more than 150 pounds. This means you should keep veterinary records, purchase paperwork, and breed certification on hand throughout the animal’s life.
It’s worth noting that “miniature” pigs are frequently misrepresented by breeders. Many animals sold as teacup or micro pigs grow well beyond 150 pounds at maturity. If your pig exceeds the weight or height threshold, it may no longer be legally permitted on your property — even if it qualified when you first brought it home. Have a veterinarian weigh and measure your pig regularly, especially during its first two years of growth.
Standard farm breeds — Duroc, Hampshire, Berkshire, Yorkshire, and similar commercial swine — will not meet miniature pig definitions in any Oregon city ordinance. These animals are only appropriate for agricultural-zoned land.
Permits, Licenses, and Registration Requirements in Oregon
Oregon’s permit landscape for backyard pigs varies significantly between the state level and local jurisdictions. At the city level, some municipalities require no permit at all, while others follow a model ordinance framework that mandates livestock permits for any swine kept on residential property.
In Portland, the approach is relatively straightforward. Permits are not required, but you must comply with all Title 13 code standards and best practices. Compliance covers enclosure standards, setbacks, sanitation, and the two-pig limit for miniature breeds. Violations can result in complaints being routed to animal control, which has enforcement authority.
Other Oregon cities may follow the League of Oregon Cities model animal ordinance, which takes a different approach. The model ordinance requires permits for keeping any livestock on real property within city limits. Under that framework, the animal control authority shall issue a permit upon application and payment of a fee, and a permit shall be revoked if the premises no longer comply with permitting requirements or if livestock present an unreasonable risk of danger to other persons or property.
At the state level, the ODA has its own registration requirements for larger or commercial operations. Owners must often register for a Premises Identification Number (PIN) to order official RFID tags for their animals. This helps the state track animals quickly during health emergencies. For a single backyard miniature pig kept as a pet, this level of registration is unlikely to apply — but if you plan to breed or sell pigs, it becomes relevant.
Operations that confine animals in prepared enclosures at a commercial scale face additional oversight. Operations that confine animals in prepared areas like barns or pens may need a Confined Animal Feeding Operation (CAFO) permit from the Oregon Department of Agriculture. This program ensures manure and wastewater do not pollute the environment. Backyard hobbyists keeping one or two miniature pigs are not typically subject to CAFO requirements, but larger operations on agricultural land may be.
Important Note: Oregon law explicitly includes swine in its livestock theft statute. Stealing a livestock animal, which includes pigs, is considered Theft in the First Degree in Oregon — a Class C felony. Secure your enclosure accordingly.
You may also want to review how Oregon handles other animal regulations for context. The state’s dog leash laws in Oregon and pit bull laws in Oregon follow a similarly decentralized model, where state law provides the framework and local governments fill in the specifics.
HOA and Neighborhood Restrictions on Backyard Pigs
Even if your city’s zoning code permits a miniature pig, your homeowners association (HOA) may not. HOA covenants, conditions, and restrictions (CC&Rs) are private contracts that can be — and often are — stricter than local law. An HOA can prohibit pigs entirely, limit the number of animals, or impose rules about enclosures and odor control that go beyond what the city requires.
This dynamic plays out across the country. Homeowner associations can banish potbellied pigs, and pot-bellied pigs have run afoul of homeowner association rules in numerous documented cases. Oregon is no exception. An HOA’s authority to enforce animal restrictions generally holds up in court as long as the restriction was in the CC&Rs when you purchased the property.
Before buying or adopting a pig, take these steps if you live in an HOA community:
- Pull your full CC&R document and search for terms like “livestock,” “swine,” “pig,” “farm animal,” and “exotic pet.”
- Contact your HOA board in writing and ask for a formal determination on whether miniature pigs are permitted.
- Get any approval in writing before bringing the animal home — verbal approvals are difficult to enforce later.
- Review any architectural or enclosure guidelines that could affect a pig shelter or outdoor pen.
- Check whether your HOA has a process for requesting a variance or exception if pigs are currently prohibited.
Even in neighborhoods without a formal HOA, nuisance ordinances can function similarly. Most Oregon cities enforce noise and odor standards that apply to all animals. Some cities allow pigs with restrictions such as only one pig allowed per household, requirements of particular vaccinations, and weight limitations. Failing to meet those standards — even with a permitted pig — can result in a complaint-driven enforcement action.
If you’re researching animal rules in neighboring states for comparison, the backyard chicken laws in Idaho and backyard chicken laws in California show how differently western states approach urban livestock. States like Texas, Kentucky, and Alaska each take their own approach as well.
The bottom line on HOAs: city zoning sets the minimum standard, but your HOA’s CC&Rs set the actual ceiling for what you can keep on your property. Always check both before making any decisions.
Keeping a pig in Oregon is entirely possible — but it requires doing your homework at every level of government and your community. Miniature potbellied pigs offer the most realistic path for urban and suburban residents, provided they stay within the size and weight limits your city defines. Rural property owners have considerably more flexibility, though state-level registration and animal health rules from the Oregon Department of Agriculture still apply. When in doubt, contact your local planning department, your county’s animal control office, and the American Mini Pig Association — which maintains resources specifically designed to help owners navigate local zoning challenges.