Wisconsin voters chose 10 electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan.

Romney's strength was concentrated in the loyally Republican Milwaukee suburbs, particularly the WOW counties (Ozaukee, Washington, and Waukesha), where he carried a combined 67.03% of the vote to Obama's 32.00%.

He also flipped 24 counties in the Northeast and Central Plain regions, though most of them were rural and therefore insufficient to overcome Obama's aforementioned victories.

As of the 2024, this is the last time the Democratic presidential nominee won the following counties: Adams, Buffalo, Columbia, Crawford, Dunn, Forest, Grant, Jackson, Juneau, Kenosha, Lafayette, Lincoln, Marquette, Pepin, Price, Racine, Richland, Sawyer, Trempealeau, Vernon, and Winnebago.

Romney's strength was concentrated in Southeast Wisconsin, carrying Milwaukee and all of its suburbs (including the Kenosha and Racine as well as the ancestrally Republican counties of Ozaukee, Washington, and Waukesha), as well as Madison.