Los Angeles, California is ranked as the most mosquito-infested city in the U.S. It has topped pest control indices for years due to its warm climate and persistent mosquito activity. However, depending on the pest company data, New York City has also ranked at the very top during particularly wet and humid seasons.
Key takeaways. The cities with the most mosquito activity include New York, Dallas-Ft. Worth, Los Angeles, Philadelphia, and Atlanta. These areas have conditions that make it easy for mosquitoes to thrive.
With mosquitoes finally found in Iceland, Antarctica is now the only mosquito-free landmass on Earth.
Congratulations, Los Angeles: you are officially America's mosquito capital. Again. According to Orkin's newly released 2026 Mosquito Cities List, L.A. has once again been ranked the No.
Florida and Texas generally tie for having the most and worst mosquitoes in the U.S. Texas boasts the highest variety, with about 85 different species, while Florida's massive swamp lands and tropical climate create a year-round breeding ground for roughly 80 species.
Mosquitoes rely on their acute sense of smell to track down carbon dioxide, sweat, and body heat. They heavily dislike pungent, sharp, and floral aromas, which overwhelm their receptors. The most effective scents to repel them include:
Nevada generally has the lowest mosquito population in the U.S. Because of its arid, dry high-desert climate and lack of standing water, the state offers very few breeding grounds for the insects. Idaho, Utah, and high-altitude areas of Colorado also experience remarkably low mosquito activity.
Natural Mosquito Predators
If you hate them, you can move indoors for a temporary escape, but if you really hate mosquitoes, you'll have to move — and we mean really far away. There are only two places in the world that are completely and utterly mosquito-free: Antarctica and Iceland.
Mosquitoes typically prefer larger or heavier people because they produce more carbon dioxide (CO2cap C cap O sub 2𝐶𝑂2) and body heat. Because mosquitoes track CO2cap C cap O sub 2𝐶𝑂2 trails from over 150 feet away, larger individuals and those with higher metabolic rates naturally stand out more.
The answer is "yes," there is one country without mosquitoes: Iceland. While its neighbors — including Norway, Scotland and Greenland — are home to multiple mosquito species, Iceland remains mosquito-free. (Of note, Antarctica is also mosquito-free, but the southern continent is not a country.)
BURN GROUND COFFEE - AN AMAZING REPELLENT!
Scoop up your coffee grounds and put them on a plate or in a cup or bowl. They need to be left to dry out as once dry they are an extremely effective, environmentally friendly mosquito repellent.
Mosquitoes are primarily drawn to humans by the carbon dioxide (CO2sub 22) we exhale, body heat, and the complex chemical odors of our sweat. These pests also use visual cues like dark colors and can detect specific skin bacteria, genetics, and even blood type (with Type O being a favorite).
States with the driest, coldest, or highest-elevation climates generally have the fewest bugs. Nevada, Colorado, and Wyoming are widely considered the best options. Their low humidity and lack of stagnant water prevent the swarms common in the rest of the country.
That is foolishness. Even if we kill one mosquito, we are responsible. It is not man-made law, that “If you kill a human being, then you are punished, and if you kill another animal, you are not punished.” This is man-made law according to our convenience.
Mosquitoes are most dangerous in tropical and subtropical regions, particularly sub-Saharan Africa, South Asia, and parts of Latin America. These areas bear the brunt of mosquito-borne illnesses, with sub-Saharan Africa alone accounting for approximately 90% of all global malaria deaths.
Mosquitoes are most repelled by citronella, peppermint, eucalyptus, lavender, and lemon balm. These botanical scents confuse and overwhelm their highly sensitive receptors.
In pest control company Orkin's annual report sunny Los Angeles, California, is the nation's most mosquito-infested city. The list was created by assessing the number of new residential treatments Orkin provides in a 12-month period. Based on its internal data, L.A. took the top spot.
Perhaps the most well-known mosquito repellent in Japan is the “mosquito coil.” A mosquito coil is a special kind of incense that has been molded in the shape of a spiral. The incense traditionally contains dried pyrethrum (a type of chrysanthemum), as well as other natural ingredients.
Bats are the primary nighttime predators of mosquitoes, with a single bat consuming thousands of insects nightly. Other nighttime predators include spiders, which catch mosquitoes in webs or hunt them, along with some bird species like nightjars and nighthawks.
Mosquitoes' least favorite blood type is type A. ◾️ What is a mosquito's favorite blood type? Mosquitoes are most drawn to type O blood. ◾️ How do mosquitoes differentiate between blood types?
Native Americans relied on a deep understanding of their local ecosystems, utilizing natural barriers, pungent botanicals, and targeted environmental management to avoid mosquitoes. Their most common defenses included:
Texas. Texas, another state known for being warm and humid, is home to the most species of mosquito. From February to November, eighty-five different species of mosquito can be found across the state.
To live entirely without mosquitoes, move to Iceland. It is the only country in the world naturally devoid of the pests due to its unique oceanic climate and freeze-thaw cycles. If you prefer to stay in the U.S., look to the arid Southwest (e.g., Las Vegas, NV) or Vermont.
Yes! True mosquito-free zones are rare, but you can escape them in places with extreme climates, high altitudes, or constant ocean winds.