Jennifer Mendoza
Research expert covering health, pharma and medtech
Allergies in the U.S. - Statistics & Facts
In 2024, the U.S. cities that suffered the most from seasonal allergies were Wichita, Kansas, Virginia Beach, Virginia, and Greenville, South Carolina. Seasonal allergies are some of the most common allergies in the United States, with just over a quarter of adults suffering from such conditions. Pollen is one of the most common triggers for seasonal allergies, but other common allergens include dust, cats and dogs, different foods and drugs, latex, and insect stings. Allergies occur when a person is hypersensitive to something in the environment, causing their immune system to perceive the substance as harmful and therefore overreact to it. Symptoms vary in degree depending on the seriousness of the allergy, but often include a runny nose, watery or itchy eyes, sneezing, a rash, swelling, and trouble breathing.
