Raising Chickens in Montana: Laws, Breeds, Climate

Montana has no statewide ban or permit system for backyard chickens. Rules are set city by city and county by county, so what you can do depends entirely on where you live. Most of Montana's larger cities allow backyard hens with a permit, though flock size limits, lot size requirements, and rooster rules vary widely. Great Falls is a notable exception inside city limits. Rural areas and unincorporated land generally have few restrictions beyond standard nuisance laws, which fits the state's deep agricultural roots.

Montana's climate is one of the most demanding in the country for any small flock. Winters across the eastern plains and high valleys regularly bring stretches of subzero weather, with occasional cold snaps that drop to -40F. Summer is the flip side: hot, very dry, with afternoon highs in the 90s and wildfire smoke now a regular feature from July through September. Wind is constant in much of the state. Your breed selection, coop design, and seasonal routines all have to be built for those extremes.

The good news is that Montanans have been keeping chickens forever. Feed stores stock chicks every spring, MSU Extension publishes solid poultry guidance, and most communities are friendly to small backyard flocks. Once you confirm your local rules and pick the right breeds, Big Sky Country is a great place to raise chickens.

What You'll Learn

• •Are Backyard Chickens Legal in Montana?
• •Montana Chicken Laws by City
• •Can You Sell Eggs in Montana?
• •Best Chicken Breeds for Montana's Climate
• •Summer Care in Montana
• •Winter Care in Montana
• •Common Predators in Montana
• •FAQ

Are Backyard Chickens Legal in Montana?

Yes, in most of the state. Billings, Missoula, Bozeman, Helena, and Kalispell all allow backyard hens with a permit and a few common rules. Most cities cap flocks somewhere between 4 and 15 hens depending on lot size, and almost every city in the state bans roosters in residential zones. The big exception is Great Falls, which still prohibits chickens inside most of its city limits.

Before buying chicks, check three things: your city or county's animal code, any HOA covenants on your property, and your zoning district. Even chicken-friendly cities have setback rules that can rule out very small lots, and an HOA can override a city ordinance.

If you live in unincorporated county land or on agricultural-zoned property, you generally face few restrictions on flock size. Montana counties rarely regulate small-scale poultry outside city limits, though some impose general nuisance and at-large livestock rules.

Montana Chicken Laws by City

Important: City and county ordinances change frequently. The information below was researched in May 2026 but may not reflect the latest rules. Always verify with your local zoning or code enforcement office before starting a flock. Links to official sources are provided where available.

◆Billings

Billings legalized backyard hens with Urban Chicken Ordinance 12-5580 in 2012, after years of resident requests.

• •Hens: Up to 6 hens per lot.
• •Roosters: Not permitted.
• •Permit: Required from the City. Permits are renewable annually and can be revoked if neighbors file complaints or rules are violated.
• •Setbacks: Coops and runs must be at least 10 feet from any neighboring dwelling and at least 10 feet from property lines and public rights-of-way.
• •Coop: Minimum 2 square feet per hen. Buildings must be covered, predator-proof, and well ventilated. Maximum 12-foot height.
• •Other: No on-site slaughter. Waste must be stored in a sealed container and disposed of properly.

◆Missoula

Missoula Chicken Permit Information

Missoula allows hens within city limits with a permit and inspection. The City directs permit questions to Animal Control at (406) 541-7387.

• •Hens: Up to 6 hens on lots under one acre; up to 12 hens on larger parcels.
• •Roosters: Not permitted.
• •Permit: Required. A one-time fee applies and the coop must pass inspection. Contact Missoula Animal Control for the current fee schedule.
• •Setbacks: Coops must be at least 10 feet from any property line and 20 feet from any neighboring dwelling.
• •Other: No on-site slaughter; coops must be kept clean and odor-free.

◆Great Falls

City of Great Falls: Urban Chickens

Great Falls is the strictest of Montana's major cities for backyard poultry. Voters declined to legalize urban chickens citywide in a November 2017 ballot question (6,646 against vs 6,040 in favor), and the existing ordinance remains in place.

• •Citywide: Keeping livestock, including chickens, is prohibited within most Great Falls city limits.
• •R-1 zoning exception: Properties zoned R-1 (typically one acre or more) may keep chickens. Birds must be fenced in or otherwise prevented from running at large.
• •Roosters: Not allowed in residential areas due to noise.
• •Enforcement: The Great Falls Police Department's Animal Control Division handles violations. Call (406) 455-8599 to report or to ask about your specific property.
• •Zoning check: Confirm your zoning with Planning & Community Development at (406) 455-8430 before getting chickens.

◆Bozeman

Bozeman Municipal Code Chapter 8: Animals

Bozeman's urban chicken ordinance took effect in late 2009 and ties flock size to lot size.

• •Hens: Minimum lot of 3,000 square feet allows up to 4 chickens. One additional hen is allowed for each additional 1,000 square feet of lot area, up to a maximum of 15 hens.
• •Roosters: Not permitted.
• •Permit: Required. $25 for up to 6 chickens, $50 for 7 to 15 chickens. Permits are renewable on the City's standard schedule.
• •Setbacks: Coops must be at least 10 feet from any structure on neighboring property and must be predator-proof.
• •Other: Existing chicken owners must apply for a permit within the published grace period or face fines.

◆Butte-Silver Bow

Butte-Silver Bow Municipal Code Title 6: Animals

Butte-Silver Bow's current rules favor larger lots, and recent attempts to allow chickens on smaller parcels have stalled at the Animal Services Board.

• •Hens: Allowed on parcels of at least 20,000 square feet (roughly a half acre), up to 25 birds.
• •Roosters: Not addressed separately in the existing rule. Confirm with the city-county clerk before adding any.
• •Permit: Not currently required under the existing ordinance, but a proposed rewrite would add permitting, inspections, and lower lot-size minimums. Status is unsettled as of mid 2026.
• •Recommendation: Contact Butte-Silver Bow Animal Services for the current status before buying chicks, especially if your lot is under 20,000 square feet.

◆Helena

City of Helena Code Title 5, Chapter 2

Helena updated its animal control ordinance to allow backyard hens within city limits, with a permit.

• •Hens: Up to 6 hens per property.
• •Roosters: Not permitted in residential zones.
• •Permit: Required from the City.
• •Setbacks: Coops must be at least 25 feet from any neighboring dwelling. Some interpretations of the code also reference a 20-foot setback from neighboring structures; confirm with Helena's planning office before building.
• •Other: Coops must be kept clean and predator-proof. Contact Helena City Hall to confirm the current permit fee and renewal schedule.

◆Kalispell

Kalispell Code Chapter 4: Animals and Fowl

Kalispell ties hen counts to lot size with a system similar to Bozeman's.

• •Hens: Up to 4 hens on the first 3,000 square feet of a residential parcel, plus one additional hen for each 1,000 square feet beyond that, up to a maximum of 15 hens.
• •Roosters: Not permitted.
• •Permit: Required. Coop inspection is mandatory before the permit is issued.
• •Setbacks: Coops must be at least 20 feet from any neighboring dwelling and at least 5 feet from property lines.
• •Coop: Must be covered, predator-proof, ventilated, and large enough to allow free movement. The coop must be adjacent to and provide free access to the chicken run.
• •Other: No on-site slaughter, no odors, no excessive noise.

Can You Sell Eggs in Montana?

Yes, with very modest requirements for small producers. The Montana Department of Livestock Milk and Egg Bureau regulates commercial egg sales, but small backyard flocks selling directly to consumers are exempt from licensing.

Under Montana Code Annotated 81-20-201, a person selling eggs that are mostly produced by their own fowl, or selling fewer than an average of 25 cases per month over 12 months, is exempt from the wholesale egg dealer license requirement. In practice, that covers nearly every backyard flock.

For direct-to-consumer sales (farm stand, farmers market, on-farm pickup, or to friends and neighbors), you do not need a state license, permit, grading, or inspection for flocks of 3,000 hens or fewer. Your eggs do need to be:

• •Kept clean, uncracked, and refrigerated at 45F or below
• •Labeled with your name and address, or marked "ungraded farm fresh eggs"
• •Sold with basic safe-handling instructions on the carton

If you want to sell to grocery stores, restaurants, cafes, or other retailers, you need an egg grading license from the Montana Department of Livestock Egg Section. Contact the Milk and Egg Bureau at (406) 444-5202 or MMEIOffice@mt.gov for licensing details.

Best Chicken Breeds for Montana's Climate

Montana asks more of a chicken than almost any other state in the lower 48. Eastern plains lows routinely drop to -20F in January, and Glacier and high-valley communities can see -40F in a cold snap. Summer brings 90F-plus afternoons with very low humidity. The right breed needs heavy plumage for winter, a small comb that resists frostbite, and enough heat tolerance to handle the dry summer. Rose-comb and pea-comb breeds have a clear edge.

Best cold-hardy breeds for Montana winters:

• •Wyandotte: Rose comb resists frostbite at -30F. Dense plumage is built for prairie wind chills. Lays 200 to 250 eggs per year. A top pick for eastern Montana.
• •Buff Orpington: Thick, fluffy feathering insulates well in deep cold. Calm, docile temperament makes them great for families. Lays 200 to 280 eggs per year.
• •Plymouth Rock: Reliable, hardy, friendly. Handles Montana's full temperature swing from -30F to 95F. Lays 250 to 280 eggs per year.
• •Brahma: Large, heavy birds with feathered feet and pea combs. Probably the most cold-tolerant breed widely available. Excellent choice for Glacier County, the Hi-Line, and anywhere with regular subzero stretches.
• •Australorp: World-record layer (364 eggs in 365 days). Cold-hardy with dense black plumage that absorbs heat on bright winter days. Handles dry summer heat reasonably well.
• •Rhode Island Red: Tough, adaptable, and forgiving of beginner mistakes. Lays 250 to 300 eggs per year. A solid all-purpose breed for Montana.
• •Sussex: Cold-hardy, good foragers, dual-purpose for eggs and meat. Light-colored varieties handle summer sun better than darker birds.

Why combs matter so much here:

Large single combs freeze fast in Montana winters. Frostbite kills comb tissue and can lead to infection, drops egg production, and is painful for the bird. Breeds with small rose or pea combs (Wyandottes, Brahmas, Buckeyes, Chanteclers) lose far less to frostbite. If you fall in love with a single-comb breed like a Leghorn, plan on applying petroleum jelly to combs and wattles before any night below 10F.

Breeds to be cautious with:

• •Mediterranean breeds (Leghorns, Minorcas, Anconas) lay great but lose comb tips most winters in Montana.
• •Tropical and lightly feathered breeds struggle with the length of the Montana cold season.
• •Silkies and other crested or heavily ornamental breeds need extra care; their fluffy heads ice up in wet snow.

Summer Care in Montana

Montana summers are hot and very dry. Eastern plains highs routinely hit the mid-90s, and the Bitterroot and Yellowstone valleys often see 100F-plus afternoons. Low humidity helps chickens cool themselves through panting, but a string of 95F days still creates real heat stress. Add wildfire smoke from July through September and summer becomes its own challenge.

Keeping your flock comfortable:

• •Shade is non-negotiable. If your run lacks trees, hang shade cloth over at least half of it. Birds standing in full sun at 95F decline fast.
• •Cool, fresh water at all times. Refill waterers twice a day. Drop frozen water bottles or ice cubes in during the worst stretches. Place waterers in shade.
• •Ventilate the coop aggressively. Open every window and vent. A still, hot coop at night kills birds. Cross-ventilation is your best tool.
• •Watch for heat stress. Panting, wings held away from the body, lethargy, pale combs. Move struggling birds to shade, offer cool water, and use a wet towel on the feet if needed. See our summer care guide for a full heat protocol.
• •Frozen treats. Watermelon, berries, or scratch grains frozen in ice blocks give birds something cool to peck at on the worst days.
• •Wildfire smoke protocol. When AQI climbs above 150, keep birds in a well-ventilated covered run, hang damp sheets on the windward side to filter air, and watch for respiratory issues. Don't seal the coop; trapped CO2 and ammonia are worse than smoke.
• •Dust baths. Dry Montana summers are ideal for chickens to maintain a dust bath area. This is their main parasite defense.
• •Don't forget the run substrate. Sand or pea gravel stays cooler than wood chips and drains better after summer thunderstorms.

Winter Care in Montana

Winter is the real test for any Montana flock. Average January lows across the eastern plains run from -5F to 5F, and arctic outbreaks can drop temperatures to -40F with brutal wind chills. The Hi-Line, Glacier County, and the high valleys are even colder. Snow can stay on the ground from November through April. Power outages from ice storms and blizzards are a real risk.

Winter coop tips:

• •Ventilation beats insulation. A dry, well-ventilated coop is warmer in practice than a sealed humid one. Frostbite is caused by moisture, not just cold. Keep roofline vents open year-round and never plug them, even at -20F.
• •Deep litter method. Start with 4 to 6 inches of pine shavings in fall. Add fresh shavings on top through winter. Composting action generates real warmth from underneath.
• •Heated waterers are mandatory. Open water freezes in under an hour at -10F. A heated base or heated waterer keeps water flowing. Always have a backup plan for power outages, even something as simple as rotating two rubber bowls between the coop and a heated garage.
• •Avoid heat lamps. They are the leading cause of coop fires in cold-climate states. Healthy cold-hardy breeds tolerate Montana winters without supplemental heat down to -20F or below. For extreme cold snaps below -30F, use a flat-panel radiant heater rated for poultry, mounted to incombustible material.
• •Wind protection matters as much as temperature. Montana wind is relentless. Site the coop with the long wall facing the prevailing wind and add a windbreak (hay bales, plywood, snow fence) on the windward side of the run.
• •Extra calories before bed. A handful of cracked corn at dusk helps birds generate body heat through the night. This is most important on nights below 0F.
• •Petroleum jelly on combs and wattles. Apply before any night forecast below 10F. Even better, choose breeds with rose or pea combs.
• •Collect eggs often. Eggs freeze and crack within an hour at subzero temperatures. Check nest boxes 2 to 3 times a day in deep winter.
• •Plan for blizzards. Stock extra feed, shavings, and water containers before storms. Check coop roofs for snow load after big dumps. See our winter care guide for a full storm-prep checklist.
• •Daylight drops to about 8.5 hours in December. Egg production will fall off naturally. Some keepers add a low-wattage timer light to bring the day length up to 14 hours; others let hens rest. Either is fine.

Common Predators in Montana

Montana's mix of plains, forest, river valleys, and mountains means the predator list is long. The eastern half of the state is coyote and raptor country. The western mountains add bears, mountain lions, bobcats, and (in a few areas) wolves. Every Montana flock keeper needs a real predator-proofing plan.

Common across the state:

• •Coyotes: The most widespread chicken predator in Montana. Found in every county. They dig under fences. Bury hardware cloth 12 inches deep around the run or lay a 2-foot wire apron flat along the ground at the base of the fence.
• •Red and gray foxes: Throughout the state. Smart, persistent, and active at dawn and dusk. Lock the coop every night without exception.
• •Raccoons: Common in towns and along rivers. They open simple latches and reach through chicken wire. Use hardware cloth (1/2 inch) on all openings, plus carabiner clips on latches.
• •Skunks and opossums: Target eggs and young chicks. Seal any gap larger than 3 inches.
• •Weasels (long-tailed, short-tailed, ermine): Small enough to squeeze through 1-inch openings. They kill many birds in a single attack. Half-inch hardware cloth is the only reliable defense.
• •Hawks: Red-tailed hawks are everywhere. Cooper's and Swainson's hawks also take chickens. A fully covered run is the best protection. Aerial netting or fishing line strung across an open run helps deter attacks.
• •Great horned owls: Active at night statewide. A solid coop with no gaps and a covered run will keep them out.
• •Domestic dogs: A leading cause of chicken kills in town. Build a real fence; don't rely on goodwill.

Rural and mountain predators:

• •Black bears: Common in western Montana, the Rockies, and the Bitterroot. They flatten coops in a single visit. Electric fencing (2 to 4 strands at chicken-height, plus one or two higher) is the only reliable bear deterrent. Store feed in a bear-proof container.
• •Grizzly bears: Present in the Northern Continental Divide Ecosystem (Glacier area), Greater Yellowstone, and increasingly in the Bitterroot foothills. Electric fence with proper voltage and grounding is essential in these areas. Coordinate with FWP if you have repeat grizzly visits.
• •Mountain lions: Throughout western Montana and increasingly statewide. They take chickens, ducks, and small livestock. A solid roofed coop and run is the only defense.
• •Bobcats and lynx: Active across forested Montana. Cats jump and climb; cover the run.
• •Gray wolves: Reestablished in western Montana, the Northern Rockies, and the Greater Yellowstone area. Wolves rarely target chickens compared to larger livestock, but they will if access is easy. Solid fence, locked coop, no exceptions.
• •Eagles (golden and bald): Open eastern plains. A covered run is the only reliable protection for free-rangers.

General predator-proofing tips:

• •Lock the coop every night, no exceptions
• •Use hardware cloth on every opening, never chicken wire
• •Install an automatic coop door if you're not home reliably at dusk
• •Store feed in metal sealed containers (bear country: in a building or bear box)
• •Add an apron or buried hardware cloth around the run perimeter
• •Electric fencing is worth the investment in bear and mountain lion country

FAQ

◆Do I need a permit to keep chickens in Montana?

It depends on your city. Billings, Missoula, Bozeman, Helena, and Kalispell all require permits. Butte-Silver Bow currently does not require a permit if you meet the 20,000 square foot lot minimum. Great Falls prohibits chickens in most zones entirely. Rural and unincorporated areas typically have no permit requirements.

◆How many chickens can I have in Montana?

It varies by city. Billings and Helena allow up to 6 hens. Missoula allows 6 on lots under one acre and up to 12 on larger lots. Bozeman and Kalispell tie counts to lot size, allowing 4 hens on 3,000 square feet plus 1 more per additional 1,000 square feet, up to 15. Butte-Silver Bow allows up to 25 on lots of half an acre or more. Rural properties generally have no flock size limits.

◆Are roosters allowed in Montana cities?

Most Montana cities ban roosters in residential zones. Billings, Missoula, Bozeman, Helena, and Kalispell all prohibit them. Great Falls also prohibits roosters in the limited zones where chickens are allowed. Agricultural zones and rural county land generally allow roosters.

◆What's the best chicken breed for Montana?

Wyandottes and Brahmas are the top picks for Montana's extreme cold. Both have small combs that resist frostbite and heavy plumage built for subzero wind chills. Plymouth Rocks and Australorps are also excellent dual-purpose layers that handle both summer heat and winter cold.

◆Can I sell eggs from my backyard flock in Montana?

Yes. Montana exempts small producers selling directly to consumers from licensing as long as the flock has 3,000 hens or fewer. Keep eggs clean, refrigerated at 45F or below, and label the carton with your name and address. Selling to grocery stores or restaurants requires an egg grading license through the Montana Department of Livestock Milk and Egg Bureau.

◆How do I protect chickens from bears in Montana?

Electric fencing is the only reliable deterrent. Run 2 to 4 strands at chicken-height plus 1 or 2 higher strands, all hot. Use a high-voltage charger and proper grounding. Store all feed in a sealed metal container inside a building or bear box. In grizzly country, coordinate with Montana Fish, Wildlife & Parks before there's a problem.

Your first step to keeping chickens in Montana is checking your city or county's rules. With most major cities allowing hens, your odds are good (Great Falls being the main exception). Once you know the rules, invest in a well-built coop ready for subzero nights and choose cold-hardy breeds with small combs. Our beginner's guide to raising backyard chickens walks through the rest of the setup.

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Picking a coop for Montana? The breed you pick matters, but so does the coop. Our best chicken coops on Amazon roundup covers picks across flock sizes and price ranges, with notes on which models hold up best in cold and windy climates.

Raising Chickens in Other States

If you're moving, considering a different state, or just curious how the rules compare, browse our other state guides:

Northeast: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont

Southeast: Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia

Midwest: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin

South & Southwest: Arizona, Arkansas, New Mexico, Oklahoma, Texas

Mountain & West: Alaska, California, Colorado, Hawaii, Idaho, Nevada, Oregon, Utah, Washington, Wyoming