Mosquito questions, answered
What Are the 10 Worst States for Mosquitoes?
The Top Three
Any honest ranking of the worst mosquito states starts in the Southeast, and one published ranking puts Florida at number one. Between the muggy temperatures, the standing water, and the year-round warm season, Florida simply never gives mosquitoes a reason to stop.
Texas takes second, and the numbers back it up: more than 85 mosquito species, dense populations in the humid forests of East Texas and along the Gulf Coast, and historically the most West Nile virus cases in the country.
Louisiana is third. The bayou’s swampy grasslands and slow water are ideal mosquito habitat from New Orleans to the northern parishes. These three states share the same formula: heat plus humidity plus standing water, held for months at a time. What is striking about the top three is how long their seasons run. In south Florida and the Gulf Coast, mosquitoes can be active ten months of the year. New York gets five or six, and that shorter season is our biggest natural advantage.
Four Through Ten
Georgia is fourth, with Atlanta called out as a particular hotspot and the state landing in the top ten for reported West Nile cases. North Carolina is fifth; both Carolinas have serious mosquito pressure, and the larger population means more human exposure to mosquito-borne disease.
Alabama is sixth, with everything from beaches to swampy inland areas that mosquitoes find hospitable, and Birmingham singled out for its mosquito problem. South Dakota is the surprise at seventh: West Nile is a big deal there, and all that summer outdoor activity means plenty of bites.
Oklahoma is eighth, sitting close to Texas, the historic center of West Nile activity. Montana is ninth, which surprises people until you hear the reasoning: abundant water sources and animal blood to feed on. Virginia rounds out the list at tenth, where more than 30 percent of residents report using bug spray all summer and some cities run sprayer trucks through neighborhoods at night. Every one of these states has all three ingredients, heat, humidity, and standing water, for months on end.
Where New York Honestly Ranks
New York did not make that top ten, and that is fair. Our winters are real, and they reset the mosquito population every year in a way Florida and Texas never get.
But do not let that fool you. Orkin’s 2026 ranking of the top 50 mosquito cities, based on the number of new residential mosquito treatments, put New York City at number three, behind only Los Angeles and Chicago. That is a ranking of demand, which means New Yorkers are calling for mosquito help at one of the highest rates in the country.
It makes sense. Dense neighborhoods, endless containers and catch basins, the urban heat island stretching the season, and marshes on Staten Island that breed mosquitoes by the millions. We may not be Florida, but nobody here would call our summers bite-free. The takeaway for Staten Islanders is not to feel smug. It is to recognize that our peak weeks, usually July and August, can rival anywhere. The difference is duration, not intensity.
What Makes a State Mosquito Heaven
The pattern across every ranking is the same. Mosquitoes need three things: warmth, humidity, and standing water that sits undisturbed for about a week. States that deliver all three for the longest stretch of the year top every list.
Heat speeds up the mosquito life cycle, so generations turn over faster in a long hot summer. Humidity keeps adults alive longer. And standing water, from swamps to ditches to forgotten buckets, is the nursery. Take away any one of the three and the numbers fall.
Elevation and wind matter too. Breezy hilltops and well-drained neighborhoods can sit in the middle of a bad mosquito state and stay relatively comfortable, while a low-lying block with poor drainage breeds clouds of them. Microclimate is everything. That is also why rankings move around year to year. A wet summer in the Midwest can make an ordinary state miserable, while a drought quiets even the South.
Staten Island's Local Version
Staten Island will never make a worst-states list, but parts of it check the same boxes. The marshes around Fresh Kills and the wetlands of the Greenbelt are our version of bayou habitat, and the city’s helicopter larviciding program exists because of them.
In our neighborhoods, from Tottenville to St. George, the bigger driver is containers. The Asian tiger mosquito breeds in bottle caps, gutters, and toys, and it only flies a few hundred feet from where it hatches. Your mosquito problem was probably born in your yard or your neighbor’s.
The container problem is also the most fixable problem. Nobody can drain a bayou, but anybody can dump a bucket. That is exactly what Bite Back targets. We started years ago treating backyards in New Jersey, where container-breeding mosquitoes rule the suburbs, and we are now bringing that same service to Staten Island: find the nurseries, treat the resting spots, and break the cycle close to home.
What to Do With This Information
If you travel to the top-ranked states in summer, pack a plant-based repellent and take mosquito-borne illness seriously. The risk is genuinely higher there, especially for West Nile virus.
And if you are hosting a summer gathering, timing helps: schedule around a yard treatment, run fans on the patio, and keep repellent by the door. Small steps stack up when the pressure is high.
At home, the lesson is simpler. You cannot change New York’s climate, but you can change your yard. Weekly water dumping, clear gutters, and a treated yard do more for your summer than any ranking ever will. The goal is not a mosquito-free county. It is a comfortable backyard, and that is very achievable. Start this weekend; your ankles will thank you.
Quick answers
What are the 10 worst states for mosquitoes?
One published ranking lists Florida, Texas, Louisiana, Georgia, North Carolina, Alabama, South Dakota, Oklahoma, Montana, and Virginia as the 10 worst states for mosquitoes, in that order. Rankings vary by source and year, but heat, humidity, and standing water drive every version of the list.
Which state has the most mosquitoes?
Florida usually takes the top spot thanks to its muggy climate, abundant standing water, and nearly year-round warm season. Texas is a close second, with more than 85 mosquito species and historically the most West Nile virus cases in the country.
Is New York bad for mosquitoes?
Worse than most people think. New York did not make one published top-10 states list, but Orkin's 2026 city ranking put New York City third for residential mosquito treatments, behind only Los Angeles and Chicago, reflecting very high demand for mosquito control.
What is the mosquito capital of the US?
By Orkin's 2026 measure of new residential mosquito treatments, Los Angeles holds the top spot among cities. By most state rankings, Florida takes the title. Either way, the winners are warm, humid places with plenty of standing water, not reputation alone.
Why is Florida the worst state for mosquitoes?
Florida combines everything mosquitoes need for most of the year: warm temperatures, high humidity, frequent rain, and vast wetlands like the Everglades. With more than 80 mosquito species and activity peaking from March through September, it rarely gets a break.
You Can't Change the Climate. You Can Change Your Yard.
New York will never outrank Florida, but your block can still feel like it in August. Bite Back started years ago treating backyards in New Jersey and is now bringing that same service to Staten Island. We will make your yard the exception, not the rule.
Or call (866) 792-8284.
Main photo via Pexels