[1] Located in northeast Wisconsin, the district consists of the urban core of Brown County.

It includes most of the city of Green Bay, along with the city of De Pere and the villages of Allouez, Ashwaubenon, and Bellevue.

[2] Jamie Wall is the senator representing the 30th district.

[3] Each Wisconsin State Senate district is composed of three Wisconsin State Assembly districts.

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