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Yellowstone County, MT Animal Ordinances: Pet Groomer Rules (2026)

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

Key Facts

Section
Zoning Code § 27-1009.M.4(e)
Rule
grooming, breeding, boarding barred as home occupations
Exception
none, unlike the auto-repair exclusion
Private kennel
still allowed separately under § 27-1009.N
Penalty
misdemeanor, fine or up to 6 months jail

Summary

Yellowstone County's zoning code will not approve pet grooming, breeding, or boarding as a home occupation anywhere in the unincorporated county. Section 27-1009.M.4(e) lists 'uses involving the grooming, breeding, or boarding of animals' among the home-based businesses the Planning Division rejects outright.

These county ordinances apply to unincorporated areas of Yellowstone County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

4. Prohibited Uses The following types of uses will not be approved as home occupations:

(a) Uses involving large or oversized goods or materials; ... (e) Uses involving the grooming, breeding, or boarding of animals.

Full Breakdown

M of the Zoning Code, Article 27-1000, Uses and Use Standards. 1 lays out the general conditions every home occupation must meet in unincorporated Yellowstone County: work confined to the dwelling or an accessory building, no signage, no non-resident employees, floor area capped at 500 square feet or 25 percent of the building footprint, and no exterior evidence that the property is anything but a residence. 4 then names specific business types that will never qualify, no matter how small: item (e) covers uses involving the grooming, breeding, or boarding of animals.

Unlike the auto-repair exclusion in the same subsection, the grooming/breeding/boarding bar carries no mobile-service exception, so a resident cannot bathe, clip, or board other people's pets for pay out of a home in the unincorporated area and call it a home occupation. 4 exclusion list. Anyone wanting to run a grooming or boarding business must locate it in a district where kennels or commercial animal services are separately permitted.

Violations & Fines

Running an unapproved grooming, breeding, or boarding business from a residence violates the Zoning Code's Article 27-1700. Under Section 27-1704.G, Yellowstone County treats any Zoning Code violation, including an unauthorized home occupation, as a misdemeanor: a fine up to the state statutory limit, up to six months in jail, or both, plus costs, with each day counted as a separate offense; the Zoning Coordinator can order the use stopped under Section 27-1704.E.

Frequently Asked Questions

Can I groom dogs for clients at my house in unincorporated Yellowstone County?
No. Section 27-1009.M.4(e) of the county Zoning Code lists the grooming, breeding, or boarding of animals among uses that will not be approved as a home occupation, so a paid grooming business cannot legally operate from a residential lot in the unincorporated county.
Does the ban also cover boarding a few dogs overnight for pay?
Yes. The same exclusion covers grooming, breeding, and boarding together, with no size threshold or mobile-service exception, unlike the auto-repair exclusion in the adjoining subsection. Any paid animal boarding or breeding operation needs a site zoned for that commercial or kennel use.
Is a private outdoor kennel for my own pets affected by this rule?
No. Section 27-1009.N separately allows a private outdoor kennel as an accessory use to a single-family home, kept in the rear yard, set back at least 5 feet from side or rear lines, and limited to 10 percent of the lot area; that differs from operating a paid grooming or boarding business.

Sources & Official References

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