Colorado - Area of significance: Politics/Government
| Adams County Courthouse |
| Alamosa County Courthouse |
| Alamosa Post Office |
| Bain Cabin |
| Belcaro |
| Bent County High School |
| Bowen Mansion |
| Bromley Farm-Koizuma Hishinuma Farm |
| Buchan Cabin |
| Buckhorn Ranger Station Historic District |
| Buena Vista Ranger Station |
| Butler House |
| Butters, Alfred, House |
| Cayton Guard Station |
| Chaffee County Courthouse and Jail Buildings |
| Chapel No. 1 |
| Chapin Mesa Village Historic District |
| City Hall of Colorado City |
| Civic Center Historic District |
| Clubhouse-Student Union |
| Colorado Springs City Hall |
| Crags Lodge |
| Craig School #2 |
| Croke-Patterson-Campbell Mansion |
| Curry-Chucovich House |
| Dawson-Carpenter Ranch |
| Department of Energy Grand Junction Office |
| Dodge-Hamlin House |
| Doud, John and Elvira, House |
| East High School |
| East Inlet Trail |
| El Paso County Courthouse |
| Englewood Post Office |
| Entrance Residence, Check Station Residence |
| Equitable Building |
| Fern Lake Trail |
| Flattop Mountain Trail |
| Fort Vasquez |
| Foster House Stage Station and Hotel Site |
| Galligan House |
| Gem Lake Trail |
| Goldfield City Hall and Fire Station |
| Granada Relocation Center |
| Grant-Humphreys Mansion |
| Greeley Junior High School |
| Greenwood Lodge |
| Holly City Hall |
| Humboldt Street Historic District |
| Indian Camp Ranch Archeological District |
| Jamestown Town Hall |
| Kenjockety |
| Land Utilization Program Headquarters |
| Las Animas Post Office |
| LeFevre, Owen E., House |
| Little Fountain Creek Bridge |
| Littleton Main Street |
| Littleton Post Office |
| Longhurst Lodge |
| Longmont Fire Department |
| Maitland Arroyo Bridge |
| Marble Jailhouse |
| McHugh-Andrews House |
| Metzger Farm |
| Montrose City Hall |
| Moraine Park Museum and Amphitheater |
| Morgan County Courthouse and Jail |
| Mount Vernon House |
| North Rim Road, Black Canyon of the Gunnison National Park |
| Notch Mountain Shelter |
| Orman-Adams House |
| Palmer, Judge Peter L. House |
| Parish, Harvey J., House |
| Park County Courthouse and Jail |
| Park Point Fire Lookout |
| Phillips County Courthouse |
| Photography and Armament School Buildings, Lowry Air Force Base |
| Pitkin County Courthouse |
| Prowers County Building |
| Pueblo City Park Zoo |
| Pueblo County Courthouse |
| Pyramid Guard Station |
| Redfeather Ranger Station |
| Rico City Hall |
| Rito Seco Creek Culvert |
| Rocky Ford Post Office |
| Russell-Graves House |
| Russell Gulch I.O.O.F. Hall No. 47-Wagner and Askew |
| San Juan Avenue Historic District |
| Sedgwick County Courthouse |
| Stockbridge House |
| Taylor, Edward T., House |
| Thunder Lake Trail-Bluebird Lake Trail |
| Tigiwon Community House |
| Union High School |
| U.S. Courthouse and Federal Office Building |
| U.S. Post Office |
| US Post Office and Federal Building-Delta Main |
| US Post Office-Florence Main |
| US Post Office-Manitou Springs Main |
| Ute Memorial Site |
Data from United States Park Service and Wikidata
