Wisconsin Dells is a city in Columbia, Sauk, Adams and Juneau counties in the U.S. state of Wisconsin. The city takes its name from the Dells …Wisconsin Dells is a city in Columbia, Sauk, Adams and Juneau counties in the U.S. state of Wisconsin. The city takes its name from the Dells of the Wisconsin River, a scenic gorge that features sandstone formations along the banks of the Wisconsin River. Wisconsin Dells a popular Midwestern tourist destination, home to several water parks and tourist attractions.