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There are many different types of mice that can make their way into homes throughout the Western U.S. Not all mice behave the same way, and identifying the mice in your home can sometimes make a difference in how you handle them. Four common mouse species found in the Western United States are the following:

We regularly encounter many types of wild mice across the region. Species and activity levels can vary based on location, from field mice in rural areas to house mice in cities.

Different types of mice across the Western U.S.

Mouse species can vary across different regions, and knowing which ones are most common in your area can help with both prevention and treatment of a mouse infestation. Some of the most frequently encountered types of mice in California include the house mouse, deer mouse, and western harvest mouse. In Arizona, homes and garages often see activity from both field mice and house mice, especially in desert-edge or semi-rural communities. The types of mice in Arizona can also vary by elevation and surrounding vegetation.

In the Pacific Northwest, types of mice in Washington State and Oregon tend to include white-footed mice and deer mice, particularly in wooded or brush-heavy areas. Urban and suburban homes still face risk from house mice, which are active year-round.

Farther inland, the types of mice in Idaho, Utah, and Nevada often overlap with those found in rural or mountain environments, like the deer mouse, along with species that adapt easily to buildings, such as the house mouse.

If you see any type of mouse in your home or business, there is a good chance there are more to be found. Wherever you live in the West, Western Exterminator’s mouse pest control technicians can help with mouse identification and treatment.

If you’re unsure whether mice are present, check out the common signs of mice to know what to look for. Give us a call or click the button below to schedule an inspection and have one of our technicians survey the property. 

Deer mice are common along the west coast from Mexico to the Northwest territories of Canada. They may also be referred to as field mice.

House mice are active all year round, which means you could find them invading your home or business at any time.

The western harvest mouse can be found along the western border of North America, from southwestern Canada through California and Arizona, down into Mexico.

The cactus mouse inhabits arid desert regions, particularly areas with cacti, rocky outcrops, and sparse vegetation.

 Have a mouse in your house?

Western Exterminator technicians are trained to track down mice and other rodents around your home and property. We can determine different mouse species,  how mice are getting in, and offer solutions that not only help get rid of mice already in the house, but also prevent them from returning. 

Depending on the situation, your technician may use one or more types of mouse traps, such as snap traps, bait stations, or live-catch devices. The right option depends on where the mice are nesting and how widespread the activity is. 

There are different types of mouse poison available, but these should only be used by trained professionals. The key to controlling mice includes sanitation, elimination of food sources and shelter, and rodent-proofing your property. This allows the setting of control measures and monitoring for population decrease. 

The first step is to reach out and contact your local Western Exterminator office. We'll help take care of the rest. 

Frequently asked questions

The house mouse is the most common species of mice worldwide – and in the U.S. Originally native to Central Asia, this common mammal has spread to nearly every country through human activity and trade.

Mice are particularly repelled by strong, pungent scents. The smells they hate most include peppermint oil, as well as ammonia, vinegar, cloves, and cayenne pepper. 

However, while these scents may provide temporary relief, they are not a complete solution for serious mouse infestations.

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