It includes the cities of Delafield, Hartford, and Oconomowoc, and the villages of Chenequa, Dousman, Eagle, Hartland, Lac La Belle, Merton, Neosho, North Prairie, Palmyra, Sussex, and Wales.

[2] Chris Kapenga is the senator representing the 33rd district.

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

[4] Previous senators include:[5] 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.