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Johnson County, KS Animal Ordinances: Dog Leash Laws (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Nuisance behavior
Aggression, chasing, property damage, harassment at large
Repeat offense
2 convictions/12 mo. triggers leash order
Fine
$50-$100 per day, Class D infraction
Stray hold period
5 days before shelter disposition
Enforcement
County sheriff / animal control officers
Jurisdiction
District Court, codes court division

Summary

A dog running loose in unincorporated Johnson County becomes a "nuisance dog" under Sec. 10-63 if it acts aggressively, chases people, damages property, or harasses livestock while at large. A second nuisance conviction in any 12-month period forces the owner to keep that dog confined or leashed in public afterward, and violations carry a $50 to $100 daily fine.

City-specific rules exist: Olathe, and Overland Park have their own dog leash laws rules that differ from Johnson County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

(a)Any dog which engages in any of the following types of behavior is deemed a nuisance:(1)While running at large and without provocation, exhibits aggression or combativeness toward a person whether or not the person is actually attacked, bitten, or otherwise physically injured by the dog;(2)Molests, chases, or interferes with a person in the public right-of-way;(3)Damages public or private property other than that of its owner; or(4)Harasses any person or livestock without provocation.(b)It shall be a violation of this article to own a nuisance dog. Any person who is twice convicted for the actions of the owner's dog in any 12-month period shall thereafter keep the nuisance dog confined on the owner's property or on a leash when in public.

Source: Johnson County Sheriff Patrol FAQView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Resolutions: Supplement 14).

Full Breakdown

Chapter 10, article II of the Johnson County Code of Resolutions does not impose a blanket leash mandate on every dog in unincorporated Johnson County; instead it regulates dogs through the "nuisance dog" and "dangerous dog" categories. Sec. " Owning a nuisance dog is itself a violation, and Sec. " Separately, Sec. 10-58 defines a "stray" to include a dog "found running at large with no collar" whose owner has not claimed it after five days of impoundment, and Sec. 10-65 authorizes the sheriff to seize and impound any nuisance, dangerous, or stray dog, humanely destroy or release unclaimed dogs after five days, and bill the owner for boarding costs.

Sec. 10-59 designates the sheriff and his deputies as the enforcing code enforcement officers, gives them authority to demand identification from suspected violators, and makes it unlawful to refuse to surrender a dog requested under the impoundment provisions.

Violations & Fines

Owning a nuisance dog is a Class D infraction under Sec. 10-60, punishable by a fine of not less than $50 nor more than $100, and each day the violation continues is a separate offense. A second conviction within 12 months triggers the mandatory leash-or-confinement order in Sec. 10-63(b). Jurisdiction sits in Johnson County District Court, codes court division (Sec. 10-61), and impounded dogs are held at the owner's expense.

Frequently Asked Questions

What makes a dog a "nuisance dog" in unincorporated Johnson County?
Sec. 10-63(a) defines a nuisance dog as one that, while running at large without provocation, shows aggression toward a person, chases or molests someone in the public right-of-way, damages property that isn't its owner's, or harasses a person or livestock. The behavior has to happen while the dog is loose and unprovoked for the nuisance label to attach.
Is there a blanket leash law for unincorporated Johnson County?
No. This Code of Resolutions does not require every dog to be leashed at all times in unincorporated Johnson County. The leash-or-confinement requirement in Sec. 10-63(b) only kicks in after an owner has two nuisance-dog convictions within a 12-month period; before that, the code regulates loose dogs through the nuisance and dangerous-dog definitions rather than a blanket tether rule.
What happens if my dog is impounded as a stray?
Under Sec. 10-58 and 10-65, a dog impounded as a stray, or seized as nuisance or dangerous, may be released to the owner, adopted out, or humanely destroyed if unclaimed after five days. The owner is responsible for boarding costs while the dog is held and may request a district court hearing before a dangerous dog is euthanized.

Sources & Official References

Other rules in Johnson County

All Johnson County rules

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