These are the top 50 rat-infested cities in America


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For the third consecutive ranking, Chicago is the worst city in America for rats, according to a new study from the pest control company Orkin.

It ranked cities by the number of rodent treatments the company performed over the past year.

Rodent season is upon us…

Fall is the start of rodent season, so unwanted pests like rats and mice will begin to seek out food, water and shelter to survive the winter.

How big of a problem is this? An estimated 20 million rodents invade homes in the U.S. every year.

“Rats and mice begin looking for warmer, more insulated places to get through the winter, and these too often happen to be our homes or businesses,” said John Kane, entomologist and Technical Director of Orkin’s Midwest Region. “Rodents like to chew on wood and electrical wires, increasing the fire danger behind your walls and potentially damage to your home.”

Getting inside isn’t a problem for them. Rats can squeeze through a hole the size of a quarter, and mice can fit through a hole the size of a dime.

And even if they can’t find an opening, they can often chew their way inside your home!

Orkin: These are the top 50 rattiest cities in America

  1. Chicago
  2. New York
  3. Los Angeles
  4. San Francisco – Oakland
  5. Washington, DC
  6. Philadelphia
  7. Detroit
  8. Baltimore
  9. Seattle – Tacoma
  10. Dallas – Ft. Worth
  11. Denver
  12. Minneapolis – St. Paul
  13. Cleveland – Akron
  14. Atlanta
  15. Boston
  16. Hartford – New Haven
  17. Portland, OR
  18. Miami – Ft. Lauderdale
  19. Indianapolis
  20. Houston
  21. Milwaukee
  22. Pittsburgh
  23. New Orleans
  24. Cincinnati
  25. Richmond – Petersburg
  26. Sacramento – Stockton
  27. Kansas City
  28. Charlotte
  29. Norfolk – Portsmouth – Newport News
  30. Buffalo
  31. Columbus, OH
  32. St. Louis
  33. Raleigh – Durham
  34. Grand Rapids – Kalamazoo
  35. San Diego
  36. Albany – Schenectady
  37. San Antonio
  38. Tampa – St. Petersburg
  39. Rochester, NY
  40. Nashville
  41. Champaign – Springfield – Decatur
  42. Greenville – Spartanburg
  43. Memphis
  44. Phoenix
  45. Syracuse
  46. West Palm Beach
  47. Orlando – Daytona Beach
  48. Madison
  49. Flint – Saginaw
  50. Green Bay – Appleton

Worried about rats and mice? There are some things you can do to keep rodents out of your home without having to hire an expensive pest control company.

Here are six tips from Orkin to prevent rats and mice:

  • Inspect both inside and outside the home for rodent droppings, burrows and rub marks along baseboards and walls.
  • Look for possible entry points outside the home and seal cracks and holes if any are found. Rodents prefer spaces that are hidden, dark, warm and difficult to reach.
  • Install weather strips around entryways, especially under doors, to help block rodents from sneaking inside.
  • Store food properly by keeping it sealed tightly in rodent-proof containers like plastic bins or metal canisters.
  • Clean up crumbs and spills as soon as they happen to avoid leaving food residue or sugary substances that can attract rodents.
  • Cut back trees and bushes to at least three feet away from homes to avoid giving rodents a “jumping off” point to access the gutters, roof or other hidden openings.

To control other pests like spiders and roaches, a few of us at have fired the big pest control companies and started doing the work ourselves for a fraction of the price.