A county of Tennessee, United States. County seat: Somerville.
A county of Alabama, United States. County seat: Fayette.
A county of Georgia, United States. County seat: Fayetteville.
A county of Texas, United States. County seat: La Grange.
A former county of Virginia, United States. Now Fayette County in Kentucky
A former county of Virginia, United States. Now Fayette County in West Virginia.
A county of Indiana, United States. County seat: Connersville.
A county of Iowa, United States. County seat: West Union.
A county of Kentucky, United States. County seat: Lexington.
A county of Pennsylvania, United States. County seat: Uniontown.
A county of West Virginia, United States. County seat: Fayetteville.
A county of Ohio, United States. County seat: Washington Court House.
A county of Illinois, United States. County seat: Vandalia.
One of 21 counties in New Jersey, United States. County seat: Somerville.
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 67 counties in Pennsylvania, United States. County seat: Somerset.