Deer mice are widely distributed across North America, making them one of the continent’s most common and adaptable rodent species. Their habitat range extends from northern Canada and Alaska down through the United States to Mexico, encompassing a variety of environments, including forests, grasslands, desert areas, and agricultural fields. Deer mice are highly adaptable and can thrive in regions that offer shelter and food sources, from natural settings to human-occupied structures such as barns, cabins, and garages. Their omnivorous diet facilitates this adaptability to different environments, allowing them to consume a wide range of food items based on availability. Despite their wide range, deer mice prefer habitats that provide ample cover from predators, such as brush piles, wooded areas, and dense vegetation. They are also found in rocky and mountainous regions where they can shelter in crevices and under boulders.