The most common rat in Minnesota is the _________.

• A. Norway Rat
• B. Roof Rat
• C. Black Rat
• D. Pack Rat

Answer: (A)

The distribution of rodent species in a place is driven by climate, habitat, and how well a species can thrive in human environments. In Minnesota’s cold temperate climate, the Norway rat is the most adaptable and widespread. It’s a robust, opportunistic feeder that can live in and around buildings, basements, sewers, and farms, and it tolerates cooler temperatures well, giving it a large foothold across urban and rural areas.

By contrast, the rodents more associated with warmer, humid climates and arboreal habits—often found higher up in structures or in coastal regions—are less common in Minnesota. Pack rats (woodrats) belong to a different genus and prefer arid western habitats, not the Minnesota environment. Because of these climate and habitat preferences, the Norway rat ends up as the most common rat in the state.