All - Architectural style - Italianate architecture
| Williams, Charles, House |
| Williams, Charles, Jr., House |
| Williams, F. G., House |
| Williams-Linscott House |
| Wilmot United Brethren Church |
| Wilson, Asa, House |
| Wilson Building |
| Wilson County Courthouse and Jail |
| Wilson, US Senator James F., House |
| Wing-Allore House |
| Winship-Smernes Building |
| Winter Building |
| Wintzer, Charles, Building |
| Wisconsin Leather Company Building |
| Withington Estate |
| Wolff, Philip A., House and Carriage House |
| Wood, Arad, House |
| Woodard, Lyman, Furniture and Casket Company Building |
| Wood, Charles, House |
| Woodrow Methodist Church |
| Woods, Alexander, House |
| Woods and Caples General Store |
| Wood-Tellkamp House |
| Wood, William Kennison, House |
| Wright, Ammi and William, House |
| Wright, Dr. Charles M., House |
| Wright, Ely, House |
| Wright Opera house Block Complex |
| Wulff, Capt. N. H., House |
| Wyatt, George, House |
| Wyatt, Leonidas R., House |
| Yerkes, Joseph D., House |
| York Lodge No. 563 |
| Ziepprecht Block |
| Zion Evangelical Lutheran Church and Parsonage |
| Zollicoffer's Law Office |
| Zuhn Building |
Data from United States Park Service and Wikidata
