Wisconsin

Admitted to the Union on May 29, 1848 as the 30th state. Wisconsin became a territory in 1836 but the area was enumerated in 1820, 1830, and 1840.

  • 1820 – 1940 federal censuses extant for all counties except for 1940.
Adams Ashland Barron Bayfield
Brown Buffalo Burnett Calumet
Chippewa Clark Columbia Crawford
Dane Dodge Door Douglas
Dunn Eau Claire Florence Fond Du Lac
Forest Grant Green Green Lake
Iowa Iron Jackson Jefferson
Juneau Kenosha Kewaunee La Crosse
Lafayette Langlade Lincoln Manitowoc
Marathon Marinette Marquette Menominee
Milwaukee Monroe Oconto Oneida
Outagamie Ozaukee Pepin Pierce
Polk Portage Price Racine
Richland Rock Rusk St. Croix
Sauk Sawyer Shawano Sheboygan
Taylor Trempealeau Vernon Vilas
Walworth Washburn Washington Waukesha
Waupaca Waushara Winnebago Wood