Colorado - Role: Building
| Wall Street Assay Office |
| Walsenburg Mercantile |
| Walter, Martin, House |
| Walters, Manuella C., Duplex |
| Ward Congregational Church |
| Ward School |
| Warshauer Mansion |
| Wasson-McKay Place |
| Waycott, Ernest, House |
| Webber, Henry, House-Pioneer Park |
| Webster Building |
| Weckbaugh House |
| Weiser, Martha, House |
| Weld County Courthouse |
| Westcliffe Jail |
| Westcliff School |
| Western Hotel |
| Westminster University |
| West Side Court Building |
| Wetmore Post Office |
| Wheeler Bank |
| Wheeler Opera House |
| Wheeler-Stallard House |
| White, Asbury, House |
| White School |
| White Spot Restaurant |
| Wild Basin House |
| Wild Basin Ranger Station and House |
| Wildhack's Grocery Store-Post Office |
| Wiley Rock Schoolhouse |
| Willow Park Patrol Cabin |
| Willow Park Stable |
| Willows School |
| Wilson, Blanche A., House |
| Wilson, S.A., Elementary School |
| Wind Ridge |
| Windsor Town Hall |
| Winks Panorama |
| Woodbury, Joseph A., House |
| Wood-Morris-Bonfils House |
| Woodward-Baird House |
| Wrightsman House |
| Young Women's Christian Association |
| Yust, E. C., Homestead |
| Y.W.C.A. |
| Zall House |
| Zang, Adolph J., House |
| Zang, Adolph, Mansion |
| Zang’s Hotel and Annex |
| Zapata Ranch Headquarters |
| Zeitz Buckhorn Exchange |
| Zion's German Lutheran Church |
Data from United States Park Service and Wikidata
