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

At that time, it consisted of Burnett, Chippewa, Clark, Dallas (later renamed Barron), Douglas, Dunn County, La Pointe (later renamed Bayfield), Pepin, Pierce, Polk, and St. Croix Counties.

As of the redistricting of 1861, the 28th now consisted of Ashland, Burnett, Dallas (later renamed Barron), Douglas, La Pointe (later renamed Bayfield), Pierce, Polk, and St. Croix counties (it was not changed in the redistricting of 1866).

An 1892 special session of the legislature declared that, The counties of Iowa and Lafayette and the towns of Cassvilla, Clifton, Ellenborough, Harrison, Hazel Green, Jamestown, Liberty, Lima, Paris, Platteville, Potosi, Smelser, Waterloo and Glen Haven in the county of Grant were now the 28th District.

As a result, the 28th, which had historically been a northern and western Wisconsin district, was now a district consisting of portions of Milwaukee County (villages of Greendale and Hales Corners; and the cities of Franklin and Greenfield); Racine County (towns of Burlington, Caledonia, Dover, Norway, Raymond, Rochester, Waterford and Yorkville; the villages of Rochester, Union Grove and Waterford; and the city of Burlington); and Waukesha County (towns of Eagle, Mukwonago, Muskego, Ottawa, Summit and Vernon; the villages of Big Bend, Dousman, Eagle, Mukwongo and Oconomowoc Lake; and the city of New Berlin).