A county of Iowa, United States. County seat: Rockwell City.
A county of Illinois, United States. County seat: Hardin.
A county of Florida, United States. County seat: Blountstown.
A county of Michigan, United States. County seat: Marshall.
A county of Texas, United States. County seat: Port Lavaca.
A county of Arkansas, United States. County seat: Hampton.
A county of Mississippi, United States. County seat: Pittsboro.
A county of West Virginia, United States. County seat: Grantsville.
A county of Alabama, United States. County seat: Anniston.
A county of South Carolina, United States. County seat: St. Matthews.
A county of Georgia, United States. County seat: Morgan.
A city, the county seat of Calhoun County, Iowa, United States, named after the founders, John M. Rockwell and his wife.