Which cities have the most mosquitoes?

Updated on: June 19th, 2025

Key takeaways

• Los Angeles, Dallas-Fort Worth, New York, Atlanta, and Houston have the highest mosquito populations for major U.S. cities as of 2024.
• Regions with warm temperatures and high humidity are where mosquitoes thrive.
• Dry and windy states have the fewest mosquitoes and the shortest mosquito seasons.
• If you live in one of the top mosquito cities or states, professionals can offer a variety of services for effective mosquito control.

Mosquitoes are often thought of as little more than pests that cause itchy red bumps, but they're actually considered the world’s deadliest animal. “As spring temperatures rise, we're already seeing mosquito activity ramp up across the country," said Dr. Sydney Crawley, Principal Vector Scientist at Terminix. "Mosquitoes aren't just a backyard nuisance—they can also carry diseases that pose real public health risks. Our annual rankings help raise awareness and encourage people to take proactive steps to protect themselves, their families, and their communities."

Ever wondered where the top mosquito-infested cities are? Depending on certain factors like moisture, temperature, and more, some places will have a higher mosquito population than others. Terminix® is sharing its list of the 50 cities with the most mosquitoes in 2024. Keep reading to check if your city made the list!

Jump to section:

What cities have the most mosquitoes?

What states have the most mosquitoes?

What states have the fewest mosquitoes?

Do you live in one of the top mosquito cities or states?

What cities have the most mosquitoes?

Mosquito populations are booming in five major U.S. cities: Los Angeles, Dallas-Fort Worth, New York, Atlanta, and Houston. These urban environments offer the perfect storm of warm temperatures, ample rainfall, and stagnant water, creating ideal breeding grounds. Los Angeles, Dallas-Fort Worth, New York, and Atlanta have long maintained their positions on this list, while Houston was a recent addition.

Terminix has identified the top 50 mosquito-infested cities across the United States. The list of these cities was compiled using service data from over 300 of our branches located throughout the country, based on where residents used the highest number of mosquito control services in 2024 in our designated market areas.

1. Los Angeles, CA
2. Dallas-Ft. Worth, TX
3. New York, NY
4. Atlanta, GA
5. Houston, TX
6. Philadelphia, PA
7. Washington D.C. (Hagerstown)
8. Orlando, FL
9. Tampa-St.Pete, FL
10. San Francisco, CA
11. Memphis, TN
12. Nashville, TN
13. Miami-Ft. Lauderdale, FL
14. San Antonio, TX
15. Boston (Manchester), MA
16. Sacramento, CA
17. Palm Springs, CA
18. Indianapolis, IN
19. Baltimore, MD
20. Mobile, AL
21. Detroit, MI
22. Little Rock, AR
23. Chicago, IL
24. Cincinnati, OH
25. Tyler, TX
26. Jacksonville, FL
27. Austin, TX
28. San Diego, CA
29. Fresno, CA
30. Columbus, OH
31. Cleveland, OH
32. Louisville, KY
33. Shreveport, LA
34. West Palm Beach, FL
35. Oklahoma City, OK
36. Kansas City, MO
37. Paducah, KY
38. Waco, TX
39. St. Louis, MO
40. Pittsburgh, PA
41. Richmond, VA
42. Tulsa, OK
43. Jackson, MS
44. Baton Rouge, LA
45. Birmingham, AL
46. Denver, CO
47. Harrisburg, PA
48. Lexington, KY
49. Ft. Myers, FL
50. Bakersfield, CA

What types of mosquitoes are common in cities?

In the U.S., there are two types of mosquitoes that you’re likely to see: the Culex and the Aedes mosquitoes. These mosquitoes differ in feeding habits and transmit different diseases, but both are equally frustrating and potentially dangerous.

Expect to encounter Aedes mosquitoes during the day near urban areas, and Culex mosquitoes closer to nighttime and near homes—especially if you’re in one of the top cities for mosquitoes.

What states have the most mosquitoes?

Texas, California, and Florida are among the top five states with the highest populations of mosquitoes. Certain regions provide the perfect paradise for mosquitoes, and these states are repeat offenders. Warm temperatures, high humidity, and ample breeding grounds create an ideal environment for mosquitoes to thrive. It's no surprise, then, that these states are consistently the top mosquito-infested states:

1. Texas
2. California
3. Florida
4. Georgia
5. New Jersey

What states have the least mosquitoes?

New Hampshire, Vermont, and Idaho are among the lucky top five states for the lowest populations of mosquitoes. If you hate mosquitoes, you'll love these five states. Unlike places with lots of water where mosquitoes thrive, these states are dry and windy, so there aren't nearly as many. Here are the five states with the fewest mosquitoes:

1. New Hampshire
2. Vermont
3. Idaho
4. Massachusetts
5. Maine

Do you live in one of these top mosquito cities or states?

Mosquitoes thrive in warm, humid environments with standing water, where they reproduce. While homeowners can help prevent infestations by removing standing water, cleaning gutters, changing water sources weekly, replacing outdoor lighting, and trimming vegetation, professional mosquito control is often necessary.

For effective mosquito control, especially in the top mosquito cities, Terminix offers professional services that target breeding sites and treat yards so you can reclaim your outdoor space. Get started today!