All - Architectural style - Italianate architecture
| Third Ward School |
| Thomas, Alma, House |
| Thomas, Fabrishous and Sarah A., House |
| Thompson, Cassius Clark, House |
| Thompson's Block |
| Thompson, Thomas Henry, House |
| Timmerman-Burd Building |
| Tinnen House |
| Tip Top |
| Todd County Courthouse, Sheriff's House and Jail |
| Tomlinson, Samuel J., House |
| Toof, John S., House |
| Town Clock Building |
| Transylvania County Courthouse |
| Treadwell, William, House |
| Trimble, James S., House |
| Turnbull, R.P., House |
| Turney-Hall House |
| Turtle Creek Pump Station |
| Tweed Courthouse |
| Tyron, Augustus S., House |
| Tyrrell County Courthouse |
| Union Block |
| Union Block |
| Union Free School |
| Union Hall |
| Union House Hotel |
| Union Mills |
| Union Railroad Station |
| Upper Fells Point Historic District |
| Urbana College Historic Buildings |
| Usher, John Palmer, House |
| U.S. San Antonio Arsenal |
| Valcour Island Lighthouse |
| Van Brunt, Daniel C., House |
| VanderHeyden, William H., House |
| Van Horn Building |
| Van Raalte, Benjamin, House |
| Van Rensselaer, Alexander, House |
| Varnado, D.A. and Son Store |
| Vaughn, Andrew C., House |
| Vergennes Station House |
| Vermilion Estate |
| Vernon County Courthouse |
| Vernon School |
| Versailles Town Hall and Wayne Township House |
| Victory Theater Building |
| Village Hobby Shop |
| Villa Louis |
| Villa Nova |
| Vinton, Alfred, House |
| Vogt, Karl, Building |
| Voorhees, John K., House |
| Vorous General Store |
| Wait Block |
| Walker, Cristopher C., House and Farm |
| Walker High School |
| Wallace Block-Old Saline Village Hall |
| Wallace, Henry C., House |
| Walling, Ansel T., House |
| Walnut Ridge Friends Meetinghouse |
| Walnut Street School |
| Walsh, William Kirby, House |
| Walters, Dr. Jefferson A., House |
| Walters, Thomas, House |
| Ward, James H., House |
| Ward, Zeb, Building |
| Warner, Seth, House |
| Warren County Courthouse |
| Warren Masonic Lodge #32 |
| Wartburg Teachers' Seminary |
| Washington County Courthouse |
| Washington County Jail |
| Wayside, The |
| Webster, Mortimer, House |
| Welch Apartments |
| Wells, Harvey, House |
| Wells-Stubbs House |
| Wenger, Martin, Farmhouse |
| Wentworth, Mark F. and Eliza J., House |
| Wenzel House |
| West Bluff Historic District |
| West, Deacon, Octagon House |
| Westford Town Farm |
| Weston, Ephrain, House |
| West Paris Lodge No. 15, I.O.O.F. |
| West Schoolhouse |
| West, Wesley, House |
| Wetzlar, Julius, House |
| White, John and Chauncey, House |
| White Mansion |
| Whiting, Newell A., House |
| Whitney, Capt. Joel, House |
| Whitneyville Congregational Church |
| Wholesale Row |
| Whorton, John Hart, House |
| Wicoff, John Van Buren, House |
| Wilbur School |
| Wilcox, Andrew, House |
| Wilkins, William and Harriet, House |
Data from United States Park Service and Wikidata
