US Heart Disease Death Rate by State: America's #1 Killer

Heart disease has been the leading cause of death in the United States for a century — but your risk of dying from it depends heavily on geography. The age-adjusted heart-disease death rate varies nearly two-fold across states, with the highest rates concentrated in the South. This guide maps heart-disease mortality across the country, ranks every state, and explains why the burden is so unevenly spread.

Heart disease: America's #1 killer

Heart disease kills more Americans than any other cause — roughly one in five deaths — ahead of cancer in second place. The map above shows the age-adjusted death rate for adults 35 and older, so older states aren't unfairly penalized in the comparison. There's encouraging news in the long run: the national heart-disease death rate has fallen dramatically over recent decades thanks to less smoking, better blood-pressure and cholesterol control, and improved emergency care. But the state-to-state gap remains wide.

Which states have the highest rates?

The highest heart-disease death rates cluster across the South and Appalachia — Mississippi, Oklahoma, Alabama, and their neighbors — while the lowest are scattered across the Upper Midwest, mountain West, and Northeast — led by Minnesota, Hawaii, and Colorado. The disparity between the highest- and lowest-rate states is striking, often approaching a two-fold difference. The ranking below lists every state from highest to lowest, a map of cardiovascular risk that closely mirrors the geography of obesity, diabetes, and smoking.

Why heart disease clusters in the South

The same risk factors travel together. The Southern states with the highest heart-disease mortality also have the highest rates of obesity, diabetes, high blood pressure, and smoking — the leading drivers of cardiovascular disease. Lower incomes and less access to preventive care compound the problem: managing heart-disease risk requires regular checkups, medication, and screening, which are harder to get where doctors are scarce and insurance coverage is thinner. The result is a stubborn regional concentration that has persisted for decades.

The good news: a long-term decline

Step back from the map and the bigger story is progress. U.S. heart-disease death rates have fallen by more than half since their mid-20th-century peak — one of the great public-health achievements of the era. Anti-smoking efforts, statins and blood-pressure drugs, better diets, and faster treatment of heart attacks all contributed. The geographic gaps shown here are differences in how widely those gains have spread, not a sign that the overall trend has reversed.