Surprise! Denver Is One of the Rattiest Cities in the U.S.

There is just something about rodents that grosses people out. Mice and rats seem to make people's skin crawl. I can understand it to an extent, but I have never really been afraid of either of these animals.

Have You Ever Seen a Rat in Colorado?

Living in numerous cities across the United States, I have seen my fair share of rats in cities like Portland, Oregon, and Tampa, Florida. Colorado, on the other hand, I don't think I can honestly say that I have ever seen a rat.

Just because I haven't seen a rat before in Colorado doesn't mean they aren't here and thriving in the state's big cities. What may surprise you is that Denver is one of the rattiest cities in the United States.

Denver Beats Out Major U.S. Cities

According to Orkin, Denver ranks pretty high on the list, beating out major metropolotian areas like Dallas, Texas, Miami, Florida, and Baltimore, Maryland.

READ MORE: Colorado Residents Warned About Dangerous Spiders

Orkin tracked rodent services of owner-occupied residences over the course of a full year from August 2024 to August 2025. Denver, Colorado, is ranked as the tenth rattiest city in the nation.

Top Cities That Beat Denver

While other major metropolotian areas ranked higher on the list, the fact that Denver ranked so high is enough to make a rodent-fearing person squirm. These are the top cities on the list that beat out Denver for the rattiest cities:

• Minneapolis, Minnesota
• Philadelphia, Pennsylvania
• Detroit, Michigan
• Washington, D.C.
• Hartford, Connecticut
• San Francisco, California
• New York, New York
• Chicago, Illinois
• Los Angeles, California

READ MORE: Colorado’s Most Bug-Infested Places This Year

See the top 50 rattiest cities in the United States at orkin.com.