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Animal Ordinances in Fairfax County, VA (2026)

9 county-level rules, plus city-specific rules for 3 cities in Fairfax County, Virginia.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Fairfax County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Chickens & Livestock

Fairfax County zoning allows livestock and poultry, except roosters, only as an accessory use on lots of two acres or more, capped at one animal unit per acre.

Fairfax County Livestock Keeping Rules

Significant Restrictions

Fairfax County, VA, Zoning Ordinance § 4102.7.J(3)-(3)(a)

(3) The keeping of livestock or poultry, excluding roosters, is allowed as an accessory use on any lot of two acres or more in size. Roosters are only permitted as part of a bona fide agricultural operation. The keeping of permitted livestock or poultry must be in accordance with the following: (a) The number of livestock kept on a given lot may not exceed the ratio of ...

Dog Leash Laws

Fairfax County makes it unlawful for any dog to run unrestricted anywhere in the county. Under County Code § 41.1-2-4, a dog off its owner's property must be on a leash, cord, or chain or confined in a primary enclosure, and a loose dog can be impounded on the spot with a possible summons for the owner.

Fairfax County Dog Leash Law

Some Restrictions

Fairfax County Code § 41.1-2-4

(a)No dog shall run unrestricted, as defined in Section 41.1-1-1, in the County. Any person who is the owner of a dog found unrestricted in the County shall be in violation of this Section. ... (b)Any dog found unrestricted in violation of subsection (a) shall be impounded, except that if the rightful owner of the dog can be immediately ascertained and located, then that owner shall be allowed ...

Breed Restrictions

Fairfax County does not impose any breed-specific restrictions. Virginia Code §3.2-6540.1 preempts local breed bans and mandates that dangerous-dog determinations be made solely on individual behavior, not breed. All dog breeds are legal to own in Fairfax County subject to standard licensing.

Animals: Dog Breed Restrictions

Few Restrictions

Va. Code § 3.2-6540.1

"Vicious dog" means a canine or canine crossbreed that has (i) killed a person, (ii) inflicted serious injury to a person, or (iii) continued to exhibit the behavior that resulted in a previous finding by a court or, on or before July 1, 2006, by an animal control officer as authorized by ordinance that it is a dangerous dog, provided that its owner has been given notice of that finding. No ca...

Exotic Pets

Fairfax County bans keeping any wild, exotic, or vicious animal as a pet, with narrow exceptions for a single certified service animal, zoological parks, circuses, and federally or state-licensed exhibitors.

Fairfax County Wild And Exotic Animal Ban

Heavy Restrictions

Fairfax County Code § 41.1-4-1

No person shall keep or permit to be kept any wild, exotic or vicious animal, as those terms are defined in Section 41.1-1-1, for any purposes, except that this prohibition shall not apply to (i) a single certified service animal in a household, (ii) zoological parks, (iii) traveling animal exhibitions, (iv) circuses or (v) individuals, organizations, or veterinary clinics that are properly lic...

Wildlife Feeding

Fairfax County Code Section 41.1-2-19 prohibits feeding mallard ducks and Canada geese, including any crossbreeds or hybrids, on parcels of land contiguous to Little Hunting Creek, and backs the ban with a civil fine of up to $50.00.

Fairfax County Waterfowl Feeding Ban

Light Restrictions

Fairfax County Code § 41.1-2-19

(a)The feeding of mallard ducks (Anas platyrhynchos) and Canada geese (Branta canadensis), and any crossbreeds or hybrids of these birds, is hereby prohibited in the area of the County described in subsection (b). (b)This prohibition is applicable to parcels of land contiguous to Little Hunting Creek, except that no provisions of this section shall be applicable on lands within a national or st...

Pet Limits

Fairfax County zoning caps the number of dogs per lot, from two dogs with no lot-size minimum up to 25,000 square feet or more for keeping more than six dogs six months or older.

Fairfax County Dog Ownership Limits by Lot Size

Some Restrictions

Fairfax County, VA, Zoning Ordinance § 4102.7.J(2)(a)

(a) The total number of dogs on-site must comply with the limits shown in the table below. These limits apply regardless of the ownership of any of the dogs. Only dogs six months or older in age are counted towards these limits. Maximum Number 2 ... No requirement ... 4 ... 10,000 square feet ... 6 ... 12,500 square feet ... More than 6 ... 25,000 square feet plus 5,000 square feet for each dog...

Cat Rules

Fairfax County requires every cat 4 months or older to be currently vaccinated against rabies; unlike dogs, cats need no county license or tag.

Fairfax County Cat Rabies Vaccination Rule

Some Restrictions

Fairfax County Code § 41.1-2-1

Unless exempt pursuant to Virginia law, the owner or custodian of each dog and domesticated cat 4 months of age and older shall have it currently vaccinated against rabies. For the purposes of this section, currently vaccinated means the animal was (i) vaccinated by a licensed veterinarian or a licensed veterinary technician under the direct supervision of a licensed veterinarian on the premise...

Pet Store Rules

Fairfax County regulates pet shops through Health Department oversight rather than sales restrictions. Chapter 41.1, Article 3 requires plan approval from the Director of Health before a shop is constructed, extensively remodeled, or converted, and imposes sanitation rules, with no ban on selling dogs or cats.

Fairfax County Pet Shop Sanitation Rules

Some Restrictions

Fairfax County Code § 41.1-3-2

When a pet shop or the premises of a dealer is hereafter constructed or extensively remodeled or when an existing structure is converted for use as a pet shop, properly prepared plans and specifications for such construction, remodeling or alteration, showing all details as to layout, entrances, partitions, window openings, ventilation, animal enclosures, storerooms, grooming areas, toilets, wa...

Veterinary Clinic Zoning

Fairfax County allows veterinary hospitals only where the Zoning Ordinance permits them by right or special exception, and every one needs Health Department sign-off before a building permit issues. Outdoor components trigger a special exception in most commercial and industrial zones, and rural-zoned hospitals need a full acre.

Fairfax County Veterinary Hospital Zoning Rules

Some Restrictions

Fairfax County, VA, Zoning Ordinance subsec. 4102.5.C

Standards applicable to all veterinary hospitals: (1) The construction and operation of all facilities must be approved by the Health Department before any building permit or Nonresidential Use Permit is issued. (2) The emission of odor and noise must be mitigated through the provision of ventilation and soundproofing in accordance with all County and State standards. Standards when permitted b...

Animal Ordinances by City in Fairfax County

3 cities in Fairfax County have their own animal ordinances rules. Each link goes to that city's dedicated page with code citations.

All Fairfax County ordinances

See every category we cover for Fairfax County: parking, noise, fences, fires, animals, pools, and more.

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