Animal Ordinances in Hillsboro, OR: What Residents Actually Need to Know

If you live in Hillsboro or are thinking about moving there, animal ordinances are one of those things you probably won't think about until they affect you directly. Hillsboro has 8 specific rules on the books covering different aspects of animal ordinances, and some of them might surprise you.

Beekeeping

Hillsboro homeowners may keep up to 3 hives, set back at least 10 feet from property lines, with mandatory notice to neighbors first.

Key details: Hive limit: 3 hives/colonies per property. Setback: 10 ft (15 ft without 6-ft barrier). Notice: Mail neighbors within 300 ft, 2 weeks ahead. Selling honey: Not allowed from residence.

Keeping unregistered or oversized apiaries, skipping the neighbor notification, or refusing removal after a valid medical allergy request violates HMC 6.20.080 and is enforceable as a nuisance under HMC 6.20 and 6.28.

Pet Limits

Hillsboro caps household pets at 3 dogs, 3 cats, and 4 rabbits per property under HMC 6.20.030, exempting young offspring of an animal already living there; exceeding the cap requires a City animal services facility license.

Key details: Dogs: 3 max per property. Cats: 3 max per property. Rabbits: 4 max per property. Litter exception: young offspring of resident female. Above the cap: needs a facility license.

Keeping more than 3 dogs, 3 cats, or 4 rabbits without an approved animal services facility license violates HMC 6.20.030 and can draw a citation and enforcement action.

Chickens & Livestock

Hillsboro requires a City-approved livestock permit before keeping any livestock under HMC 6.20.070, bans standard livestock like horses or cows on residential lots outright, and caps miniature livestock at 2 animals with a 15-foot enclosure setback.

Key details: Permit: required before keeping livestock. Standard livestock: barred on residential lots. Miniature livestock cap: 0-2 by lot size. Enclosure setback: 15+ feet from property line. Non-compliance: permit citation/revocation.

Keeping livestock without an approved permit, exceeding the miniature-livestock cap, keeping standard livestock on a residential lot, or placing an enclosure under 15 feet from a property line violates HMC 6.20.070 and can trigger citation or permit revocation.

Veterinary Clinic Zoning

Veterinary clinics in Hillsboro are regulated as animal service facilities: indoor or supervised-yard operations need Development Review approval, while any outdoor run allowing unsupervised animal activity requires a conditional use permit.

Key details: Enclosed/supervised-yard clinics: Development Review required. Unsupervised outdoor runs: Conditional use permit required. Outdoor noise limit: 60 dBA at property line. Outdoor exercise density: 10 animals per 1,000 sq ft. Governing code: Hillsboro CDC § 12.40.110.

Operating an animal service facility, including a vet clinic with unsupervised outdoor runs, without the required Development Review or conditional use approval, or exceeding the outdoor noise and screening standards, is a Community Development Code violation subject to enforcement.

Pet Groomer Rules

Pet grooming businesses in Hillsboro fall under the Community Development Code's 'Animal Service Facility' use category, which sets where such facilities can locate and requires Conditional Use approval for any outdoor exercise runs.

Key details: Use category: 'Animal Service Facility' (CDC § 12.01.500). Enclosed facilities: permitted outright in allowed zones. Outdoor runs: Conditional Use approval required. Outdoor exercise density: max 10 animals per 1,000 sq ft. Animal noise limit: 60 dBA at property line.

Operating an animal service facility, including a grooming business with an outdoor run, without the required zoning approval is a Community Development Code violation the City can enforce through its land-use code compliance process.

Cat Rules

Hillsboro exempts cats from its at-large prohibition, so they may roam freely, but caps ownership at 3 cats per property unless extras are kittens under 4 months from a resident female, per HMC 6.20.010 and 6.20.030.

Key details: At-large rule: cats specifically exempt. Ownership cap: 3 cats per property. Kitten exception: under 4 months, resident female. City cat licensing: none found in Municipal Code.

Keeping more than 3 cats without qualifying kittens violates HMC 6.20.030(B); cats otherwise sit outside the at-large enforcement HMC 6.20.010 applies to dogs and other keepers' animals.

If you are coming from a city with tighter rules, you will find Hillsboro gives residents more flexibility on cat rules.

Exotic Pets

Hillsboro defers exotic-pet eligibility to state and federal wildlife agencies but bans breeding, slaughter, and sale of animal products at home.

Key details: Species list: Set by state/federal wildlife agencies. Breeding: Prohibited. Selling products: Prohibited from residence. Slaughter: Prohibited on residential property.

Keeping a species without the required state/federal permit, breeding exotic animals, selling their products, or slaughtering them at home violates HMC 6.20.090 and is enforceable as an animal nuisance under HMC 6.28.

Dog Leash Laws

Hillsboro requires dogs to be leashed off the owner's property. Washington County Animal Services enforces leash laws.

Key details: Leash Required: On all public property. Off-Leash: Designated areas only. Cleanup: Required. Enforcement: Washington County Animal Services.

Violations result in citations and fines. Dogs at large may be impounded.

This is one of the stricter rules in Hillsboro's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Hillsboro's animal ordinances rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Hillsboro is broadly strict or permissive.

All of the above reflects Hillsboro's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.