Mannington is a city in Marion County, West Virginia, United States, located in the hills of North Central West Virginia. The population was 1,961 at the 2020 census. In its earliest years it was call

Marion County is a county in the U.S. state of West Virginia. As of the 2020 census, the population was 56,205 and its county seat is Fairmont. The county was named in honor of General Francis Marion,