Chicago Tops Orkin's Top 50 Rattiest Cities List

ATLANTA —  Fall temperatures are on the way and so are the rodents. Orkin released its Top 50 Rattiest Cities list today. For the third consecutive ranking, Chicago takes the top spot.

The metro regions are ranked by the number of rodent treatments the company performed from September 15th, 2016 – September 15th, 2017. This ranking includes both residential and commercial treatments.

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

Fall is the start of rodent season. As the weather gets colder, unwanted pests like rats and mice seek out food, water and shelter to survive the winter. According to the National Pest Management Association, more than 20 million rodents invade homes each year.