Colorado - Area of significance: Social History
| 7-D School |
| Adobe Stables, Arkansas Valley Fairgrounds |
| Akron Gymnasium |
| Albert Porter Pueblo |
| Alger, Amanda K., Memorial Methodist Episcopal Church |
| All Saints Church of Eben Ezer |
| American Federation of Human Rights Headquarters |
| American Legion Hall |
| Ammunition Igloo |
| Animas Forks |
| Annunciation Church |
| Antelope Springs Methodist Episcopal Church |
| Arapahoe Acres |
| Arapaho Hills |
| Argentum Mining Camp |
| Armory Hall, Fraternal Hall |
| Art Building |
| Arvada Downtown |
| Ashcroft, Colorado |
| Astor House Hotel |
| Avoca Lodge |
| Barger Gulch Locality B |
| Barker, Hannah, House |
| Bass Site |
| Bear Canon Agricultural District |
| Belcaro |
| Bemis Hall |
| Bemis, Judson Moss, House |
| Benevolent and Protective Order of Elks Lodge |
| Bent County Courthouse and Jail |
| Bent's Old Fort National Historic Site |
| Bimson Blacksmith Shop |
| Black Forest School |
| Boggsville |
| Boulder County Poor Farm |
| Boulder Valley Grange No. 131 |
| Bradford House II |
| Briarhurst |
| Brinker Collegiate Institute |
| Bross Hotel |
| Buckeye School |
| Bunce School |
| Burlington Gymnasium |
| Byers-Evans House |
| Calamity Camp |
| Calhan Paint Mines Archeological District |
| Campbell, Richard Crawford, House |
| Camp George West Historic District |
| Canyon (Canon) Creek School, District No. 32 |
| Carnegie Library |
| Carnegie Public Library |
| Carnegie Public Library |
| Cascade Boy Scout Camp |
| Castle Park Archeological District |
| Chadbourn Spanish Gospel Mission |
| Chaffee County Courthouse and Jail Buildings |
| Chaffee County Poor Farm |
| Chama Sociedad Proteccion Mutua de Trabajadores Unidos (SPMDTU) Lodge Hall |
| Chance Gulch Site |
| Christ Methodist Episcopal Church |
| Clayton, George W., Trust and College |
| Clifton Community Center and Church |
| Clubhouse-Student Union |
| Coal Creek School |
| Coates Creek Schoolhouse |
| Colorado Amphitheater |
| Colorado Chautauqua |
| Colorado Springs Day Nursery |
| Colorado Springs Fine Arts Center |
| Colorado Springs Public Library-Carnegie Building |
| Colorado State Capitol Annex Building and Boiler Plant |
| Colorado State Forest Building Complex |
| Colorado Woman's College |
| Colorado Women's Prison |
| Columbia Cemetery |
| Como Cemetery |
| Como School |
| Congregational Church |
| Conifer Junction Schoolhouse |
| Convicts' Bread Oven |
| Cornwall Apartments |
| Cossitt, Frederick H., Memorial Hall |
| Country Club Historic District |
| Crawford Hill Mansion |
| Crescent Moly Mine No. 100 and Mining Camp |
| Crestone School |
| Crown Hill Burial Park |
| Curtis School |
| Debs School |
| Denver Athletic Club |
| Denver Municipal Auditorium |
| Denver Orphans' Home |
| Denver Press Club |
| Devils Kitchen Picnic Shelter |
| Dickens Opera House |
| Dickinson Branch Library |
| District No. 17 School-Medlen School |
| Downtown Denver Central YMCA and Annex |
| Downtown Longmont Historic District |
| Drennan School |
Data from United States Park Service and Wikidata
