Unveiling California’s Rodent Diversity: Types of Rats That Live in the Golden State

In California, there are several types of rats that are commonly found. The most common species include:

Norway Rat (Rattus norvegicus)

The Norway rat, also known as the brown rat or sewer rat, is one of the most prevalent rat species in California. These rats have brown or gray fur and can grow up to 12 inches in length. They are excellent burrowers and are typically found in urban areas, near water sources, and in sewers. Norway rats are known to cause damage to property, contaminate food, and transmit diseases.

Roof Rat (Rattus rattus)

The roof rat, also called the black rat or ship rat, is another rat species found in California. These rats have a slender body with black or dark brown fur. They are excellent climbers and are often found in elevated areas such as attics, roofs, and trees. Roof rats are known for their agility and are more commonly found in coastal regions. They can cause damage to property and transmit diseases.

Deer Mouse (Peromyscus maniculatus)

The deer mouse is a common rodent species found in California, particularly in rural and wooded areas. These mice have a brownish-gray coat with a white underbelly and are known for their large eyes and long tails. Deer mice are primarily outdoor dwellers but can occasionally find their way into buildings. They can carry hantavirus, a potentially serious respiratory disease.

It’s important to take preventive measures to avoid rat and mouse infestations, such as sealing any openings or gaps in buildings, keeping food properly stored, and maintaining cleanliness. If you suspect a rat or mouse infestation in your property, it is recommended to contact a professional pest control service for appropriate measures to control and eliminate the rodents safely.