What is the Most Common Rodent?

The most common rodent found in homes across the United States is the house mouse. An infestation of house mice is very difficult to get rid of, as they can fit through holes no larger than a dime. Deer mice are less commonly found in homes, but they can invade during the cooler months when they are desperately seeking food and shelter from the elements. When rats become a problem, it is most likely Norway rats that are infesting a space, although roof rats are also common throughout the country.