QuickStats: Percentage of Adults Aged 18-64 Years with Current Asthma,* by State - National Health Interview Survey,† 2014-2016.

During 2014–2016, 8% of U.S. adults aged 18–64 years had current asthma. Current asthma prevalence was highest in New Hampshire (12.7%), Vermont (12.3%), Arizona (11.0%), Kentucky (10.8%), and Maine (10.8%). The prevalence was lowest in Hawaii (4.9%), North Dakota (5.7%), Arkansas (5.9%), South Carolina (6.2%), and North Carolina (6.2%).