Dunklin County is a county located in the Bootheel of the U.S. state of Missouri. As of the 2010 census, the population was 31,953. The largest city and county seat is Kennett. The county was officially organized on February 14, 1845, and is named in honor of Daniel Dunklin, a Governor of Missouri who died the year before the county was organized.Dunklin County comprises the Kennett, MO Micropolitan Statistical Area.