There are 10 US Post Offices in Yell County serving a total of 22,627 residents equating to 2,263 residents per post office. It's estimated that approximately 36,115 packages are handled across the 10 county post offices annually. Yell County is a county in the U.S. state of Arkansas. As of the 2010 census, the population was 22,185. 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. It is an alcohol prohibition or dry county. Yell County is part of the Russellville, AR Micropolitan Statistical Area."