9. New York – Asthma Rate 10.7 percent
State of New York is ranked 9th on our list of states with the highest asthma rates in the US, with asthma prevalence of 10.7 percent, and estimated 1,643,000 adults having asthma. However, it is the worst state on our list of states with the highest asthma rates, when it comes to asthma death rate, which is 13.1 or third worst of all states that have asthma death rate statistics.