Search for Washington Island luxury homes with the Sotheby’s International Realty network, your premier resource for Washington Island homes. We have 1 luxury homes for sale in Washington Island, and 137 homes in all of Wisconsin. Homes listings include vacation homes, apartments, penthouses, luxury retreats, lake homes, ski chalets, villas, and many more lifestyle options. Each sale listing includes detailed descriptions, photos, amenities and neighborhood information for Washington Island.