Dell is a town in Mississippi County, Arkansas, United States. The population was 194 at the 2020 census. Dell has its origins in a community that developed around a loading dock and post office operated by J.B. Richardson in the late 1890s. When the Jonesboro, Lake City and Eastern Railroad completed a rail line through the area, a town was laid out n…Dell is a town in Mississippi County, Arkansas, United States. The population was 194 at the 2020 census. Dell has its origins in a community that developed around a loading dock and post office operated by J.B. Richardson in the late 1890s. When the Jonesboro, Lake City and Eastern Railroad completed a rail line through the area, a town was laid out near the tracks. The town was initially known as "Rozell" after an early landowner, but due to naming conflicts with a nearby community known as "Rochelle", the name was changed to "Dell". The town incorporated in 1905.