List of U.S. counties with shortest life expectancy

As of my last knowledge update in October 2023, the list of U.S. counties with the shortest life expectancy can vary based on new studies, data compilations, and reports from health organizations or government agencies. Traditionally, counties in states like Kentucky, West Virginia, and Mississippi have been noted for lower life expectancy figures, often due to factors such as socioeconomic status, access to healthcare, lifestyle choices, and public health issues.