Around Montana
Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.
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Local rodent information
Rodent control in Montana
Learn what to look for around your property, explore your city, and ask about an inspection or a quote.
Rodents in Montana: what to know
What to note
Where you see rodents, how long it has been going on, and anything you’ve already tried are the most useful details to mention.
A useful next step
Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.
Local research
Rodents in Montana: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in Montana, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.
49, with 11 deaths
Hantavirus cases in Montana since 1993
One of the heaviest state burdens in the country relative to population.
Montana Department of Public Health and Human Services, Communicable Disease Epidemiology0 to 2 cases per year
Typical annual hantavirus count
6 cases were reported 2020-2025: 4 non-HPS infections and 2 that became hantavirus pulmonary syndrome.
Montana Department of Public Health and Human Services, Communicable Disease EpidemiologyMedian age 45 (range 8 to 68)
Who gets it
Exposure is usually cleaning cabins, sheds and outbuildings with mouse droppings.
Montana Department of Public Health and Human Services, Communicable Disease EpidemiologyRodent species recorded in Montana
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Deer mouse (Peromyscus maniculatus) — Primary U.S. hantavirus carrier; lives throughout Washington and the interior West.
When rodents are busiest in Montana
Risk peaks when closed-up cabins, sheds and outbuildings are opened and cleaned in spring.
Montana DPHHS follows CDC's seal up, trap up, clean up sequence: never sweep or vacuum droppings.
For context, nationally
Sources: Montana Department of Public Health and Human Services, Communicable Disease Epidemiology; CDC; Pest Notes: House Mouse; Pest Notes: Rats; Hantavirus. Figures are quoted as the source prints them. How we check our sources
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Anaconda
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Missoula
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