Lake Geneva, the University of Wisconsin-Whitewater, and Alpine Valley Resort, and Music Theatre are located in Walworth County.

[6] East Troy Municipal Airport (FAA LID: 57C), serves the county and surrounding communities As of the census of 2020,[2] the population was 106,478.

[17] Owing to its Yankee heritage,[19] which contrasts with the German-American or Scandinavian-American character of most of Wisconsin, Walworth County was initially a stronghold of the Free Soil Party.

[20] It voted for Martin van Buren and John P. Hale in Wisconsin's first two presidential elections,[21] and its opposition to the spread of slavery led to its population voting Republican in subsequent elections,[21] even resisting the appeal of Wisconsin native Robert La Follette when he carried the state in 1924 as a Progressive.

[22][23] The only Democrat to carry the county was Woodrow Wilson in 1912, who won 36 percent of the vote.

Even with the GOP mortally divided between President William Howard Taft and Theodore Roosevelt, Wilson only won the county by 29 votes.

Franklin D. Roosevelt and Bill Clinton are the only other Democrats since Wilson to cross the 40 percent mark, though Joe Biden came very close in 2020.