The following counties in Colorado have historic locations on the National Register of Historic places. Please select a county in Colorado to see the different historic places in the county.

Adams County Historic Locations	Alamosa County Historic Locations
Arapahoe County Historic Locations	Archuleta County Historic Locations
Baca County Historic Locations	Bent County Historic Locations
Boulder County Historic Locations	Chaffee County Historic Locations
Cheyenne County Historic Locations	Clear Creek County Historic Locations
Colfax County Historic Locations	Conejos County Historic Locations
Costilla County Historic Locations	Crowley County Historic Locations
Custer County Historic Locations	Delta County Historic Locations
Denver County Historic Locations	Dolores County Historic Locations
Douglas County Historic Locations	Eagle County Historic Locations
Elbert County Historic Locations	El Paso County Historic Locations
Fremont County Historic Locations	Garfield County Historic Locations
Gilpin County Historic Locations	Grand County Historic Locations
Gunnison County Historic Locations	Hinsdale County Historic Locations
Huerfano County Historic Locations	Jackson County Historic Locations
Jefferson County Historic Locations	Kiowa County Historic Locations
Kit Carson County Historic Locations	Lake County Historic Locations
La Plata County Historic Locations	Larimer County Historic Locations
Las Animas County Historic Locations	Lincoln County Historic Locations
Logan County Historic Locations	Mesa County Historic Locations
Mineral County Historic Locations	Moffat County Historic Locations
Montezuma County Historic Locations	Montrose County Historic Locations
Morgan County Historic Locations	Otero County Historic Locations
Ouray County Historic Locations	Park County Historic Locations
Phillips County Historic Locations	Pitkin County Historic Locations
Prowers County Historic Locations	Pueblo County Historic Locations
Rio Blanco County Historic Locations	Rio Grande County Historic Locations
Routt County Historic Locations	Saguache County Historic Locations
San Juan County Historic Locations	San Miguel County Historic Locations
Sedgwick County Historic Locations	Shasta County Historic Locations
Summit County Historic Locations	Teller County Historic Locations
Washington County Historic Locations	Weld County Historic Locations
Yuma County Historic Locations