A county of Ohio, United States. County seat: Marion.
A county of Florida, United States. County seat: Ocala.
A county of South Carolina, United States. County seat: Marion.
A county of Mississippi, United States. County seat: Columbia.
A county of Indiana, United States, United States. County seat: Indianapolis. It is consolidated with Indianapolis as Indianapolis-Marion County.
A county of Georgia, United States. County seat: Buena Vista.
A county of Iowa, United States. County seat: Knoxville.
A county of Oregon, United States. County seat: Salem.
A county of Tennessee, United States. County seat: Jasper.
A county of Alabama, United States. County seat: Hamilton.
A county of Arkansas, United States. County seat: Yellville.
A county of Illinois, United States. County seat: Salem.
A county of Texas, United States. County seat: Jefferson.
A county of Kentucky, United States. County seat: Lebanon.
A county of West Virginia, United States. County seat: Fairmont.
A county of Missouri, United States. County seat: Palmyra.
A county of Kansas, United States. County seat: Marion.
One of 88 counties in Ohio, United States. County seat: Mansfield.
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.