Backyard Pig Laws in Hawaii: What You Need to Know Before Getting One

Hawaii is one of the few states that formally recognizes domesticated pigs as pets under state law — but that single fact only scratches the surface of what you need to know before bringing a pig home. The rules that actually govern your situation come from at least three separate layers: state statute, county zoning, and any private restrictions tied to your property.

Whether you want a potbellied pig as a companion animal or you’re thinking about raising swine on agricultural land, the requirements are different, and the consequences of getting them wrong range from fines to forced rehoming. This guide walks through every layer of Hawaii’s backyard pig laws so you can make an informed decision before acquiring an animal.

Important Note: Hawaii’s pig regulations are enforced at the county level, and rules differ meaningfully between Honolulu, Hawaii County, Maui, and Kauai. Always verify current requirements with your specific county planning or animal services department before acquiring a pig.

Are Backyard Pigs Legal in Hawaii?

Yes — keeping a pig in Hawaii is legal, but the answer comes with significant conditions attached. Hawaii recognizes pet pigs as pets, and owners must follow specific guidelines if they want to keep them on their property. That recognition at the state level does not automatically mean you can keep a pig anywhere in the state; it means the activity is not categorically prohibited, and that local rules determine whether your specific address qualifies.

Whether you can legally keep a pet pig depends on where you live, and the answer involves checking at least three separate layers of rules: local zoning ordinances, state agriculture regulations, and any private restrictions from your HOA or landlord. In Hawaii, this multi-layer analysis is especially important because the state’s geographic isolation gives its Department of Agriculture unusually broad authority over what animals enter and remain in the state.

The Hawaii Department of Agriculture has outlined several requirements for owners to keep pet pigs legally, including breed restrictions. If owning a pet pig is legal under local laws, obtaining proper licensing or permits may also be necessary. Failing to check all three layers before acquiring a pig is the most common reason owners end up in violation.

How Hawaii Classifies Pigs — Livestock vs. Pet

Hawaii uses a dual classification system for pigs, and which category applies to your animal has direct consequences for which rules govern you. Under HRS Section 711-1100, a “pet animal” is defined as a dog, cat, domesticated rabbit, guinea pig, domesticated pig, or certain caged birds, only when not bred for consumption. This means a pig kept as a companion animal — not raised for meat — can qualify as a pet under Hawaii’s animal cruelty statutes and receive the legal protections that come with that designation.

The dividing line is intent and use. The statute explicitly notes that the primary pet enclosure definition does not apply to the confinement of any animals raised for food, such as livestock, rabbits, or pigs raised specifically for meat production. A pig you raise for slaughter is livestock, full stop. A pig you keep as a companion animal can qualify as a pet — but only if it meets the state’s other conditions, including breed requirements.

Domesticated animals recognized by the Hawaii Department of Agriculture include dogs, cats, cattle, swine, poultry and birds, sheep, and horses. Domesticated animals are regulated by the Hawaii Department of Agriculture’s Animal Industry Division. Swine brought into the state as livestock fall under the Animal Industry Division’s import and health requirements, which are separate from the pet pig pathway.

Key Insight: The livestock vs. pet distinction matters practically. A pig classified as a pet in Hawaii may qualify for animal cruelty protections under HRS Chapter 711. A pig classified as livestock does not receive those same protections and is instead governed by agricultural and food safety statutes.

Because pigs are classified as livestock by species at the state level, a 50-pound potbellied pig falls into the same legal category as a 700-pound farm hog in many jurisdictions — which is why Hawaii’s explicit pet recognition under HRS 711-1100 is meaningful. It carves out a legitimate pathway for companion pig ownership that many states do not provide.

Zoning and Property Requirements for Keeping Pigs in Hawaii

State-level recognition of pet pigs does not override local zoning. Your county’s zoning designation for your property is the single most important factor determining whether you can legally keep a pig at your address. Livestock is permitted in agricultural and intensive agricultural districts; however, certain residential zones within agricultural districts established prior to the Hawaii Land Use system may prohibit livestock, including some animals.

Hawaii County provides one of the clearest documented examples of how this works in practice. Hawaii County’s zoning rules specify that any feed or water area, salt lick, corral, run, barn, shed, stable, house, hutch, or other enclosure for the keeping of any permitted animal must be located at least seventy-five feet from any lot line. That setback requirement alone eliminates most standard residential lots from consideration for livestock-scale pig keeping.

Notably, Hawaii County’s permitted uses table explicitly lists livestock production as excluding pigs in certain zones, and requires that Department of Health requirements be met and director approval be obtained. This means even on agricultural land in Hawaii County, a piggery is not automatically permitted — it requires an additional approval layer.

Piggeries, apiaries, and pen feeding of livestock must be on sites approved by the State Department of Health under Hawaii County’s agricultural zoning rules. This applies even when the underlying land use is agricultural. For the City and County of Honolulu, zoning lot area suitable for crop production or livestock keeping must be dedicated to crop production or livestock keeping through an agricultural easement or similar legal encumbrance.

Some lots in agricultural regions have association rules that restrict farming activities, including livestock ownership. There are also residential areas adjacent to agricultural zones that retain the right to engage in agricultural activities. These gray areas make it essential to contact your county planning department directly rather than assuming your zoning designation tells the whole story. You can check Hawaii’s backyard chicken laws for a parallel example of how county-by-county zoning analysis works for livestock-adjacent animals on the islands.

Size, Weight, and Breed Restrictions in Hawaii

Hawaii’s breed and size requirements for pet pigs are among the most specific in the country. The Hawaii Department of Agriculture has outlined that only specific breeds or crossbreeds are permitted as pets. This restriction exists primarily because of Hawaii’s biosecurity concerns — the state’s geographic isolation makes it uniquely vulnerable to the introduction of disease or invasive genetic lines that could affect both domestic pig populations and native ecosystems.

The breed restriction means you cannot simply import any pig and declare it a pet. The animal must fall within the approved categories recognized by the Hawaii Department of Agriculture’s Animal Industry Division. The Hawaii Department of Agriculture manages these efforts through two different branches depending on the type of animal — the Animal Industry Division handles domesticated animals, while the Plant Quarantine Branch manages non-domesticated species.

At the county level, size and weight thresholds add another layer. Hawaii County’s planning code identifies piggeries — defined as more than four pigs on an agricultural property — as requiring special oversight. This means keeping up to four pigs on qualifying agricultural land sits in a different regulatory category than operating a formal piggery, which triggers additional permit requirements. Keeping fewer pigs does not exempt you from zoning compliance, but it does reduce the permit burden.

If your local ordinance permits pigs only under a specific weight limit, a pig that outgrows that threshold puts you in violation, and some owners have been forced to rehome pigs that exceeded their municipality’s cap. This is a practical concern with breeds marketed as “miniature” or “teacup” pigs. Asking the breeder about the parents’ size and age gives you a better estimate than trusting marketing language, but there is no guarantee with any individual animal.

Pro Tip: Before purchasing a pig marketed as a miniature breed, request documentation of the parents’ adult weight and verify the breed is on Hawaii’s approved list through the Animal Industry Division. A pig that grows beyond a county’s weight cap can result in a violation notice even if it was legally acquired.

Permits, Licenses, and Registration Requirements in Hawaii

Permit requirements in Hawaii operate at both the state and county levels, and the specific documents you need depend on whether your pig is classified as a pet or as livestock, and what you plan to do with it on your property.

For pigs brought into the state from the mainland or other jurisdictions, the Animal Industry Division governs the import process. The Hawaii Department of Agriculture’s Plant Quarantine Branch regulates the importation of non-domestic animals, while domesticated animals — those bred for the purpose of living near or about the habitations of humans — are handled separately. Swine are listed among the domesticated animals regulated by the Animal Industry Division, so any pig you import must clear that division’s requirements before arriving in Hawaii.

Obtaining proper licensing or permits is necessary to ensure that the pig receives appropriate vaccines, health checks, and can be easily identified if lost or found wandering. At the county level, the specific permit pathway depends on your zoning. For agricultural properties in Hawaii County, operating a piggery — more than four pigs — requires a use permit and State Department of Health site approval. For pet pigs kept in compliant residential or agricultural zones, local animal control registration may apply.

For livestock-scale pig operations, Hawaii Revised Statutes Section 159-25 prohibits any person from slaughtering swine or preparing meat products for intrastate commerce except in compliance with the chapter’s requirements. This means any backyard pig operation that moves toward commercial slaughter or meat sales triggers a separate layer of food safety and processing regulations entirely apart from the zoning and pet permit framework.

The table below summarizes the primary permit layers you are likely to encounter:

Permit Type	Governing Body	When Required
Animal Import Permit	HDOA Animal Industry Division	Importing any swine from outside Hawaii
State DOH Site Approval	Hawaii Dept. of Health	Operating a piggery on agricultural land
County Use Permit	County Planning Dept.	More than four pigs on ag property (Hawaii County)
Local Animal Registration	County Animal Control	Pet pig in compliant residential or ag zone

HOA and Neighborhood Restrictions on Backyard Pigs in Hawaii

Even when state law and county zoning both permit a pig on your property, your homeowners association can still prohibit it outright. Clearing city and state law still does not settle the question if you live under private rules. A homeowners association’s governing documents are a binding contract between you and the community, and they often prohibit livestock or limit permitted pets to “common household pets” like dogs and cats. Whether a pig qualifies as a household pet under vague HOA language has sparked real disputes, and the HOA’s interpretation usually prevails unless you challenge it.

Hawaii has documented examples of this dynamic. In the Makakilo subdivision on Oʻahu, pet goats are explicitly prohibited because the area is zoned for residential use and the local homeowners association enforces livestock restrictions. HOA restrictions can add an additional layer of prohibition even on properties that meet county zoning requirements. The same logic applies directly to pigs, which are more likely than goats to trigger HOA livestock clauses due to odor and noise concerns.

County or community regulations may impose limits on noise or animal types. Reviewing local ordinances and homeowners’ association rules is essential if applicable. Before you acquire a pig, pull your HOA’s Covenants, Conditions, and Restrictions (CC&Rs) and look specifically for language about livestock, farm animals, swine, or “common household pets.” If the CC&Rs are ambiguous, request a written ruling from your HOA board before purchasing the animal — verbal assurances are not enforceable.

If you rent rather than own, your lease agreement adds a fourth layer of restriction. Most standard residential leases in Hawaii either prohibit livestock explicitly or require landlord approval for any pet beyond dogs and cats. A pig kept without written landlord consent can be grounds for lease termination regardless of what local zoning allows.

Pro Tip: Request any HOA or landlord approval for a pig in writing and keep a copy. If the HOA later changes its interpretation of livestock rules, written approval at the time of acquisition gives you a documented basis to challenge enforcement.

Understanding how these rules stack — state statute, county zoning, DOH site approval, county use permits, and HOA or lease restrictions — is the only way to be confident you are keeping a pig legally in Hawaii. Each layer must be checked independently, because compliance with one does not guarantee compliance with the others. For comparison, you can review how similar multi-layer rules apply to other animals in the state, such as Hawaii’s roadkill laws, which also reflect the state’s unusually active role in managing animal-related activity.

If you are researching livestock and backyard animal laws in other states, the following guides cover comparable frameworks: backyard chicken laws in Georgia, backyard chicken laws in California, backyard chicken laws in Texas, backyard chicken laws in Florida, and backyard chicken laws in New York. For additional state-by-state context, see guides for Alaska, Arizona, Colorado, and Kentucky.