Wisconsin's 2nd congressional district

Wisconsin's 2nd congressional district is a congressional district of the United States House of Representatives in southern Wisconsin, covering Dane County, Iowa County, Lafayette County, Sauk County and Green County, as well as portions of Richland County and Rock County. The district includes Madison, the state's capital, its suburbs and the surrounding areas. The district also includes the University of Wisconsin–Madison campus, and like many districts of this era anchored by a college town, the district is overwhelmingly Democratic.

The district is currently represented by Democrat Mark Pocan, who succeeded current Senator Tammy Baldwin in 2013.

Since the late 1990s, the district has tilted more and more Democratic, due to the presence of the heavily Democratic capitol city, Madison, and the increasingly Democratic suburbs and exurbs surrounding the city&mdash;the fastest growing region in the state. The 2002 court-ordered redistricting also accelerated this trend by removing several of the more Republican-leaning areas of the district into the 3rd congressional district. Since the implementation of that map, only the Milwaukee-based 4th district is more Democratic. John Kerry won the district in 2004 with 62% of the vote. Barack Obama also swept the district in 2008 with 69% of the vote to John McCain's 30%. Donald Trump received the lowest percentage vote of a major party presidential candidate in the district in the 21st century, with 29% in both 2016 and 2020, to Hillary Clinton and Joe Biden’s 66% and 69% respectively.

Counties and municipalities within the district
Dane County
 * Belleville, Black Earth, Blue Mounds, Brooklyn, Cambridge, Cottage Grove, Cross Plains, Dane, Deerfield, DeForest, Fitchburg, Madison, Maple Bluff, Marshall, Mazomanie, McFarland, Middleton, Monona, Mount Horeb, Oregon, Rockdale, Shorewood Hills, Stoughton, Sun Prairie (city), Verona, Waunakee, and Windsor.

Green County
 * Albany, Brodhead, Browntown, Monroe, Monticello, and New Glarus.

Iowa County
 * Arena, Avoca, Barneveld, Cobb, Dodgeville, Highland, Hollandale, Linden, Mineral Point, Muscoda (Iowa County side), Rewey, and Ridgeway.

Lafayette County
 * Argyle, Belmont, Benton, Blanchardville, Darlington, Gratiot, Shullsburg, and South Wayne.

Rock County
 * Edgerton, Evansville, Footville, and Orfordville.

Sauk County
 * Baraboo, Lake Delton, Loganville, Merrimac, North Freedom, Plain, Prairie du Sac, Reedsburg, Rock Springs, Spring Green, Sauk City, and Wisconsin Dells (Sauk County section).