All - Architectural style - Prairie School architecture
| Toltec Lodge |
| Tomah Public Library |
| Tomek, F.F., House |
| Traweek House |
| Tromanhauser, Norman, House |
| Trost, Henry C., House |
| Trumbo, A. C., House |
| Twenty-Twenty Grand Building |
| Union City Passenger Depot |
| Union Depot |
| Union Pacific Railroad Depot |
| University President's House |
| Van Cleave Flats |
| Vinalhaven Public Library |
| Vipham, Thomas, House |
| Voigts, Herman J. and Ella B., House |
| Walser, Joseph J., House |
| Walthall County Courthouse and Jail |
| Walton, Franklin and Amelia, House |
| Waterville Opera House |
| Watkins, J. R., Medical Company Complex |
| Wee Haven |
| Westcott House |
| Western Tablet and Stationery Company, Building #2 |
| Westminster |
| Whidden-Kerr House and Garden |
| White, James Phelps, House |
| White, John W., House |
| Whittier School |
| Whittington, W. M., House |
| Wichita Falls & Northwestern Railroad Passenger Depot |
| Willey, Malcolm, House |
| Williams, James and Corinne, House |
| Williamson County Jail |
| Williams-Tarbutton House |
| Williges Building |
| Willits, Ward Winfield, House |
| Wilson, Fred D., House |
| Winnemucca Grammar School |
| Winnetka Heights Historic District |
| Winslow, William H., House And Stable |
| Wolf, Mier, House |
| Woodbine Public Library |
| Woodbury County Courthouse |
| Wood, Ernest M., Office and Studio |
| Woolley Apartments |
| Wooten, Horace O., House |
| Wright, L. T., House |
| Wynkoop, A.L., House |
| Yates Center Carnegie Library |
| Yelland, Curtis, House |
| Youngblood, Tessa, House |
| Zabloudil-Hendrick House |
| Zeigler, Rev. Jesse R., House |
| Zimmerman House |
| Zimmerman-Rudeen House |
| Zion Chapter House |
Data from United States Park Service and Wikidata
