Crittenden County is a county located in the U.S. state of Arkansas. As of the 2020 census, the population was 48,163. The county seat is Marion, and the largest city is West Memphis. Crittenden County is part of the Memphis, TN-MS-AR Metropolitan Statistical Area. Most of the county's media comes from Memphis, although some Little Rock TV is imported by Comcast Cable. It lies within Arkansas's 1st congressional district.