Wisconsin's 42nd Assembly district

The 42nd Assembly District of Wisconsin is one of 99 districts in the Wisconsin State Assembly. Located in south-central Wisconsin, the district comprises most of the southern half of Columbia County and part of northern Dane County. It includes the cities of Columbus and Lodi, and the villages of Arlington, DeForest, Doylestown, Fall River, Poynette, and Rio, as well as part of the north side of the city of Madison including the Greater Sandburg, American Center, Pumpkin Hollow and Truax neighborhoods. The district also contains Dane County Regional Airport, Madison Area Technical College, and the American Family Insurance corporate headquarters. The district is represented by Republican Jon Plumer, since June 2018.

The 42nd Assembly district is located within Wisconsin's 14th Senate district, along with the 40th and 41st Assembly districts.

History
The district was created in the 1972 redistricting act (1971 Wisc. Act 304) which first established the numbered district system, replacing the previous system which allocated districts to specific counties. The 42nd district was drawn roughly in line with the boundaries of the previous Outagamie County 1st district (almost all of the city of Appleton).

The 42nd district boundaries have shifted significantly over the various redistrictings of the state, but the location of the district has remained consistent in south-central Wisconsin since the 1983 redistricting.