 The county has two county seats, Dardanelle and Danville.Yell County is Arkansas's 42nd county, formed on December 5, 1840 from portions of Scott and Pope counties.It was named after Archibald Yell, who was the state's first member of the United States House of Representatives and the second governor of Arkansas; he later was killed in combat at the Battle of Buena Vista during the Mexican–American War.