Arkansas - Significance region: Local
| Union Chapel School and Shop Building |
| Union Church and School |
| Union County Courthouse |
| Union Life Building |
| Union School |
| Union Station |
| United Hebrew Congregation Tilles Memorial Temple |
| United Presbyterian Church of Canehill |
| United States Post Office |
| University of Central Arkansas Historic District |
| University Park Historic District |
| US 62 Bridge over Crooked Creek |
| U.S. 62 White River Bridge |
| US 64, Menifee Segment, Old |
| US 64, Old, Scotia Segment |
| US 67 Bridge over Little Missouri River |
| US 67, Old, Biggers to Datto |
| US 67, Old, Mandeville |
| US 67 Rest Area, Old |
| US 70, Union Valley Segment |
| US 71, Greenland Segment, Old |
| US Post Office-Stuttgart |
| Utley, Dr. E.F., House |
| Valley Springs School |
| Van Buren County Courthouse |
| Van Buren County Road 2E Bridge |
| Van Buren Overpass |
| Van Buren Post Office |
| Van Frank Cottages |
| Vaughn House |
| Veasey-DeArmond House |
| Velda Rose Tower Motor Hotel |
| Vernon & Moore-McIlroy Produce Warehouse |
| Vestal, Walter, House |
| Vest Cemetery |
| Vest, John S., House |
| Veterans Administration Hospital |
| Villines Mill |
| Vinson House |
| Violet Cemetery |
| Visitors Chapel AME |
| Voorhees School |
| Wabbaseka Methodist Episcopal Church, South |
| Wade-Heerwagen House |
| Wadley, J.K., House |
| Waldo Water Tower |
| Waldron Commercial Historic District |
| Waldron School Historic District |
| Walker, Evelyn Gill, House |
| Walker Homestead Historic District |
| Walker, Otha, Homestead |
| Walker, Thomas, House |
| Walker, Vol, Library-University of Arkansas, Fayetteville |
| Wallace Bridge |
| Wallace Building |
| Walls Farm Barn and Corn Crib |
| Walls, James A., House |
| Walnut Grove Cemetery |
| Walnut Grove Methodist Church |
| Walnut Grove Presbyterian Church |
| Walnut Ridge Army Airfield Access Road |
| Walnut Ridge Commercial Historic District |
| Walnut Ridge Post Office, Old |
| Walton, Dr. James Wyatt, House |
| Wanslow, Robert, House |
| Ward, Earl and Mildred, House |
| Ward-Jackson House |
| Ward's Crossing Bridge |
| Ward-Stout House |
| Ward, Zeb, Building |
| War Eagle Bridge |
| War Eagle Creek Bridge |
| Warner, Capt. John T., House |
| Warren Brick Streets |
| Warren Commercial Historic District |
| Warren Post Office |
| Warrens Bridge |
| Washburn House |
| Washington County Courthouse |
| Washington County Jail |
| Washington County Road 35 Bridge |
| Washington, George Berry, Memorial |
| Washington Street Historic District |
| Washington-Willow Historic District |
| Waterman-Archer House |
| Waters, Charles Clary, House |
| Watkins House |
| Watkins, Tom, House |
| Watson House |
| Watson, William Henry, Homestead |
| Watts, Dr. J. D., House |
| Weathers House |
| Weaver, Lee, House |
| Weber House |
| Wee Pine Knot |
| Welch, William, House |
| Weldon Gin Company Historic District |
| Wesley Chapel |
| West 12th Street Overpass |
| West 14th Street Overpass |
Data from United States Park Service and Wikidata
