Why Chicago is the Second Worst City for Mosquitoes (2026)

Chicago's Summer Nightmare: More Than Just Mosquitoes

Chicago, the city known for its brutal winters and deep-dish pizza, has been ranked as the second-worst city in the United States for mosquitoes. This ranking, released by pest control company Orkin, highlights a growing concern that extends beyond the traditional southern hotspots. While it may seem like a minor annoyance, the expansion of mosquito activity in the Midwest, including Chicago, is a significant public health issue.

A Shifting Landscape

For years, Atlanta dominated the list of mosquito-prone cities, but Los Angeles has held the top spot since 2021. This shift in mosquito activity patterns is attributed to changing climate conditions and the expanding range of the yellow fever mosquito. Shannon Sked, an entomologist with Orkin, notes that the Midwest is experiencing a surge in mosquito activity, with Chicago not alone in its suffering. Milwaukee and Minneapolis have also seen significant increases in mosquito-related issues.

Public Health Concerns

Mosquitoes are more than just a nuisance; they are a genuine public health concern. These insects can spread diseases such as West Nile virus, Zika, and Eastern Equine Encephalitis. Additionally, cases of dengue fever are on the rise in the United States. Orkin recommends several preventive measures to combat the mosquito problem, including eliminating standing water, wearing long sleeves, trimming overgrown vegetation, and using CDC-recommended repellents.

A Summer to Remember (or Forget)

As the summer heat sets in, Chicagoans may need to adapt to a new normal. Surviving the city's summer may require more than just SPF 50 and a patio reservation; it might also involve enough bug spray to fumigate a small forest. The expansion of mosquito activity in the Midwest is a reminder that even in the colder regions of the country, public health concerns can arise.

Personal Reflection

As someone who has lived in Chicago for most of my life, I find this ranking both surprising and concerning. While I've always known that summer in Chicago can be a challenge, the idea that the city is now among the top mosquito hotspots in the country is a wake-up call. It highlights the importance of taking preventive measures and being mindful of the potential health risks associated with mosquitoes. Perhaps it's time to reevaluate our summer plans and consider the impact of these tiny creatures on our daily lives.

Why Chicago is the Second Worst City for Mosquitoes (2026)
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