There are 9 US Post Offices in Crittenden County serving a total of 50,097 residents equating to 5,566 residents per post office. It's estimated that approximately 79,960 packages are handled across the 9 county post offices annually. Crittenden County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 50,902. The county seat is Marion, and the largest city is West Memphis. Crittenden County is Arkansas's twelfth county, formed October 22, 1825, and named for Robert Crittenden, the first Secretary of the Arkansas Territory. Crittenden County is part of the Memphis, TN\u2013MS\u2013AR Metropolitan Statistical Area. Most of the county's media comes from Memphis, although some Little Rock TV (Arkansas Educational Television Network, KATV) is imported by Comcast Cable. It lies within Arkansas's 1st congressional district."