It contains the cities of Sheboygan, Manitowoc, Two Rivers, Plymouth, Kiel, and Sheboygan Falls, and the villages of Kohler, Oostburg, and Elkhart Lake.

The district also contains Sheboygan County Memorial Airport, Whistling Straits golf course, Road America motorsport course, Kohler-Andrae State Park, Lakeland University, and the University of Wisconsin–Green Bay, Sheboygan Campus.

[2] Devin LeMahieu is the senator representing the 9th district.

[4] Note: the boundaries of districts have changed repeatedly over history.

Previous politicians of a specific numbered district have represented a completely different geographic area, due to redistricting.