Jefferson County

One of 67 counties in Alabama, United States. County seat: Birmingham.

One of 75 counties in Arkansas, United States. County seat: Pine Bluff.

One of 64 counties in Colorado, United States. County seat: Golden.

One of 67 counties in Florida, United States. County seat: Monticello.

One of 159 counties in Georgia, United States. County seat: Louisville.

One of 44 counties in Idaho, United States. County seat: Rigby.

One of 92 counties in Indiana, United States. County seat: Madison.

One of 99 counties in Iowa United States. County seat: Fairfield.

One of 105 counties in Kansas, United States. County seat: Oskaloosa.

One of 120 counties in Kentucky, United States. County seat: Louisville.

One of 102 counties Illinois, United States. County seat: Mount Vernon.

One of 82 counties in Mississippi, United States. County seat: Fayette.

One of 114 counties in Missouri, United States. County seat: Hillsboro.

One of 56 counties in Montana, United States. County seat: Boulder.

One of 93 counties in Nebraska, United States. County seat: Fairbury.

One of 62 counties in New York, United States. County seat: Watertown.

One of 88 counties in Ohio, United States. County seat: Steubenville.

One of 77 counties in Oklahoma, United States. County seat: Waurika.

One of 67 counties in Pennsylvania, United States. County seat: Brookville.

One of 36 counties in Oregon, United States. County seat: Madras. Named after Mount Jefferson (Oregon).

One of 95 counties in Tennessee, United States. County seat: Dandridge.

One of 39 counties in Washington, United States. County seat: Port Townsend.

One of 55 counties in West Virginia, United States. County seat: Charles Town.

One of 72 counties in Wisconsin, United States. County seat: Jefferson. Named after Jefferson County, New York.

One of 254 counties in Texas, United States. County seat: Beaumont.