This Year Marks a Decade of Chicago as the Rattiest City in America

Los Angeles and New York hold strong in the top three for seventh consecutive year

ATLANTA (Oct. 21, 2024) – For the tenth straight year, Chicago has secured the top spot on Orkin’s Top 50 Rattiest Cities List, maintaining its reign since the list’s inception. This decade-long dominance highlights the city’s ongoing battle with rodents, as well as the efforts taken to treat their presence, which has been driven largely by the Windy City’s infrastructure and environment.

Chicago’s abundance of alleys provides rodents with hidden havens, offering plenty of space to hide while feasting on trash. Rodents also love to burrow, finding shelter beneath subway tracks or around underground pipes. In these hidden spots, the rodent population can grow if left unchecked.

Other large cities face similar challenges with rats. Los Angeles, ranked #2, and New York, ranked #3, have been among the top three Rattiest Cities since 2017. Of the 50 cities, New York state is represented the most, with five cities making the list: New York, Albany, Buffalo, Rochester and Syracuse.

This year’s data was collected by tracking new residential rodent treatments from September 1, 2023, to August 31, 2024. This data helps Orkin better understand how likely homeowners in each city are to have a rodent problem.

1. Chicago, Ill.

2. Los Angeles, Calif.

3. New York, N.Y.

4. San Francisco, Cali.

5. Washington, D.C.

6. Denver, Colo.

7. Philadelphia, Pa.

8. Detroit, Mich.

9. Baltimore, Md.

10. Cleveland, Ohio

11. Minneapolis, Minn.

12. Boston, Mass.

13. Hartford, Conn.

14. Seattle, Wash.

15. Indianapolis, Ind.

16. Atlanta, Ga.

17. Columbus, Ohio

18. San Diego, Calif.

19. Milwaukee, Wis.

20. Sacramento, Calif.

21. Pittsburgh, Pa.

22. Dallas, Texas

23. Miami, Fla.

24. Norfolk, Va.

25. Houston, Texas

26. Charlotte, N.C.

27. Grand Rapids, Mich.

28. Raleigh, N.C.

29. Honolulu, Hawaii

30. Albuquerque, N.M.

31. Albany, N.Y.

32. Phoenix, Az.

33. Greenville, S.C.

34. Cincinnati, Ohio

35. Tampa, Fla.

36. Nashville, Tenn.

37. Richmond, Va.

38. Portland, Ore.

39. Orlando, Fla.

40. New Orleans, La.

41. Buffalo, N.Y.

42. Flint, Mich.

43. Rochester, N.Y.

44. Champaign, Ill.

45. Kansas City, Mo.

46. Burlington, Vt.

47. Oklahoma City, Okla.

48. Syracuse, N.Y.

49. Charleston, W.Va.

50. Greensboro, N.C.

Mice and rats are a serious concern to the millions of homeowners who deal with infestations each fall. As the weather cools, rodents seek warm shelter and food sources.

“Rodents can cause a lot of structural problems for property owners,” says John Kane, Orkin National Accounts Entomologist & Quality Manager. “They can get in around piping and even chew through walls. These tiny culprits tend to chew through wiring, which poses an increased risk of fires.”

Rodents eat about one or two ounces of food a day, which is the equivalent of a slice of bread. Even if they’re not eating, mice and rats are constantly chewing. A rat’s teeth have a rating of 5.5 on the Mohs hardness scale, which means they are powerful enough to chew through steel garbage cans.

They also reproduce quickly, causing a small infestation to become a big problem, sometimes before property owners even realize the animals are nearby. Rodents are known to spread illnesses to humans, including Leptospirosis, Salmonellosis, LCM, plague and typhus.

Because of these numerous threats, homeowners and business owners should know how to spot a rodent infestation, and what action to take. Here are a few common signs of a rodent infestation:

• Droppings: Rodent droppings are commonly spotted near food sources, along baseboards or inside cabinets.

• Noises: You might hear a rodent infestation before you see it. Listen for scratching or scurrying sounds, especially at night when rodents are more active.

• Gnaw marks: Mice and rats are constantly chewing on anything they can find. Homeowners might notice holes in food packaging, wires that are bitten into pieces, or gnaw marks on walls and furniture.

• Rub Marks: Rodents’ fur is greasy, leaving a trail where they scurry. This can be spotted along baseboards or around entry points.

• Burrows: Rats specifically burrow around the foundation of a building, or in piles of debris.

Property owners who think they have a rodent infestation should take quick action to prevent the situation from worsening. Here are some tips:

• Seal entry points: Rats only need an opening the size of a quarter to access a building, and mice need even less space. That’s why it’s important to seal any gaps around windows, doors and pipes.

• Eliminate food sources: Rodents enter buildings if they can find access to food. Property owners can make the area less inviting by storing food in sealed containers, cleaning up crumbs and spills immediately, ensuring garbage is kept in tightly sealed bins, and removing pet food from areas accessible by rodents.

• Maintain outdoor areas: Clean up debris that rodents could use as nesting materials or shelter. Trim trees and shrubs that are close to the building to prevent rodents from using them as pathways.

• Patch your trash containers: Look for holes chewed in the bottom, tops or sides of your trash container. Requesting a replacement can be costly and can take months; patching is something that can be done swiftly and ongoing. Professionals use a plastic welder to patch these, but a homeowner can make do with an epoxy adhesive and duct tape. Apply the duct tape to cover the hole from inside, then mix and apply your epoxy adhesive atop the tape back filler, applying thickly. Once it sets, it will take rodents some time to make new holes, but it can be an ongoing struggle and is best won by having nearby burrows addressed.

• Fix leaks: Eliminate water sources by fixing leaky faucets, pipes or standing water.

• Set Traps: Place traps in areas where rodent activity is high.

• Call the Pros: It is important to prevent an infestation from getting worse by calling the experts. Orkin Pros are trained to provide a tailored solution to all pest needs.

For more information about rodent prevention, visit Orkin.com/pests/rodents.

About Orkin, LLC

Founded in 1901, Atlanta-based Orkin is an industry leader in essential pest control services and protection against termite damage, rodents and insects. Orkin has 358 owned and operated branch offices and 47 franchises in the U.S. The company also has international franchises and subsidiaries in Canada, Europe, Central America, South America, the Caribbean, the Middle East, Asia, the Mediterranean, Africa, and Mexico. For more than 120 years, Orkin has been committed to protecting public health by helping prevent and control pests as well as educating consumers on the potential health risks posed by these pests. As such, Orkin Pros always put the customer first and approach every opportunity with the utmost professionalism and the knowledge and skillset to solve any pest problem. Since 2020, Orkin has partnered with the American Red Cross® to inform the public about the health threats of mosquitoes while boosting our country’s blood supply through monetary contributions and blood donations. Orkin is committed to hiring the world’s best to help protect the places where we live, work and play. Learn more about careers at Orkin here. Visit Orkin.com for additional information. Orkin is a wholly-owned subsidiary of Rollins Inc. (NYSE: ROL). Follow us on Facebook, Instagram and LinkedIn.