One of 120 counties in Kentucky, United States. County seat: Somerset.
One of 102 counties in Illinois, United States. County seat: Mound City.
One of 114 counties in Missouri, United States. County seat: Waynesville.
One of 159 counties in Georgia, United States. County seat: Hawkinsville.
One of 95 counties in Virginia, United States. County seat: Pulaski.
One of 75 counties in Arkansas, United States. County seat: Little Rock.
One of 92 counties in Indiana, United States. County seat: Winamac.
One of 67 counties in Pennsylvania, United States. County seat: Somerset.
One of 16 counties in Maine, United States. County seat: Skowhegan.
One of 23 counties in Maryland, United States. County seat: Princess Anne. Named after Lady Somerset.
One of 21 counties in New Jersey, United States. County seat: Somerville.