A county of Illinois, United States. County seat: Mount Carroll.
A county of Iowa, United States. County seat: Carroll.
A county of Missouri, United States. County seat: Carrollton.
A county of New Hampshire, United States. County seat: Ossipee.
A county of Arkansas, United States. County seats: Berryville and Eureka Springs.
A county of Kentucky, United States. County seat: Carrollton.
A county of Mississippi, United States. County seats: Carrollton and Vaiden.
A county of Virginia, United States. County seat: Hillsville.
A county of Tennessee, United States. County seat: Huntingdon.
A county of Indiana, United States. County seat: Delphi.
A county of Ohio, United States. County seat: Carrollton.
A county of Georgia, United States. County seat: Carrollton.
A county of Maryland, United States. County seat: Westminster.
Mount Carroll Township, Carroll County, Illinois, a township in Illinois.
A city, the county seat of Carroll County, Illinois, United States, named after Charles Carroll of Carrollton.