U.S. / county disease rankings

Counties with the highest infant mortality rates (U.S.)

Among 1,180 U.S. counties with published values, the counties with the highest infant mortality rates are Kusilvak Census Area, AK (20.2, 3.26 times the U.S. county median of 6.2), Oglala Lakota County, SD (16.9, 2.73 times the U.S. county median of 6.2) and Todd County, SD (15.4, 2.48 times the U.S. county median of 6.2). Values are deaths under 1 per 1,000 births.

Source: County Health Rankings, built from CDC National Vital Statistics System death records. These are county-level figures, compared with the U.S. county median. A high rate does not prove an environmental cause: age, smoking, income, access to care, screening and chance all move county rates, and small counties swing widely.