One of 95 counties in Tennessee, United States. County seat: Columbia.
One of 46 counties in South Carolina, United States. County seat: Columbia.
One of 56 counties in Montana, United States. County seat: Sidney.
One of 53 counties in North Dakota, United States. County seat: Wahpeton. Named after Morgan T. Rich.
One of 72 counties in Wisconsin, United States. County seat: Richland Center.
One of 102 counties in Illinois, United States. County seat: Olney.
One of 88 counties in Ohio, United States. County seat: Mansfield.