Wisconsin - Area of significance: Industry
| Third Avenue Historic District |
| Thorstrand |
| Tischer, Wilhelm Blacksmith Shop |
| Trimborn Farm |
| Trout Point Logging Camp |
| Van Brunt, Daniel C., House |
| Van Ostrand, Dewitt Clinton, House |
| Vincent-McCall Company Building |
| Waite Grass Carpet Company |
| Wajiwan ji Mashkode Archeological District |
| Walker Manufacturing Company-Ajax Plant |
| Walker's Point Historic District |
| Washington Avenue Historic District |
| Water Street Commercial Historic District |
| Waukesha Pure Food Company |
| Weinbrenner Shoe Factory |
| West Center-North 32nd Industrial Historic District |
| West Main Street Historic District |
| Whiting, Frank B., House |
| Whiton-Parker House |
| Winnebago Cheese Company |
| Wipf, J. & C., Mills |
| Wisconsin Power and Light Berlin Power Plant |
| Zahn, August, Balcksmith Shop and House |
Data from United States Park Service and Wikidata