Local rodent information

Rodent control in Massachusetts

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Rodents in Massachusetts: what to know

Around Massachusetts

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

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 Massachusetts: what the public record shows

Before you compare quotes, it helps to know which rodents actually live in Massachusetts, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

About 25 mice or rats

Rodents present for every one seen

UMass Extension's rule of thumb for judging an infestation from sightings.

UMass Extension, Center for Agriculture, Food, and the Environment

Some 45

Diseases rodents are known to carry

Contamination of food and living areas by urine, droppings and hair is the main exposure route.

UMass Extension, Center for Agriculture, Food, and the Environment

Mice 3-6 feet apart; rats 23-33 feet apart

Bait and trap spacing

Mice forage a few feet from harborage, rats range much further, so placement differs by species.

UMass Extension, Center for Agriculture, Food, and the Environment

Rodent species recorded in Massachusetts

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.

UMass guidance is prevention first: eliminate food, water and shelter, then trap.

For context, nationally

1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC

Sources: UMass Extension, Center for Agriculture, Food, and the Environment; CDC; Pest Notes: House Mouse; Pest Notes: Rats; Hantavirus. Figures are quoted as the source prints them. How we check our sources

Explore Massachusetts cities

Boston

Humid Continental · urban setting

Rodent control in Massachusetts

Rodents in Massachusetts: what to know

Around Massachusetts

What to note

A useful next step

Rodents in Massachusetts: what the public record shows

Rodent species recorded in Massachusetts

For context, nationally

Explore Massachusetts cities

Boston

Brockton

Brookline

Cambridge

Fall River

Framingham

Haverhill

Lawrence

Lowell

Lynn

Malden

New Bedford

Newton

Plymouth

Quincy

Somerville

Springfield

Taunton

Waltham

Worcester

Salem

Ask about rodent control in Massachusetts