Milwaukee County
WIGenWeb

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Milwaukee County WIGenWeb is a free genealogical site about the history of the county. We hope you find helpful clues for your research of Milwaukee County ancestors.

Please consider contributing your pieces of Milwaukee county family history. Corrections, updates, and additions to this site are always welcome. Our combined efforts can make this a great site for all who visit!

 County Coordinator: YOU? Milwaukee WIGenWeb is Available for Adoption.

Temporary County Coordinator: Rebecca Maloney

State Coordinator: Marcia Kuehl

Assistant State Coordinator: Rebecca Maloney

COUNTY FORMATION

Milwaukee County, Wisconsin, was formed from a vast original territory established by the Wisconsin Territorial Legislature in 1836, encompassing much of southeastern Wisconsin, with its boundaries gradually shrinking as new counties were carved out, officially solidifying its present form as the core of the region's development around Lake Michigan.
Key Stages in its Formation:
Early Territory (1836): The Wisconsin Territorial Legislature created a massive county named "Milwaukee," which included present-day Milwaukee, Jefferson, Kenosha, Ozaukee, Racine, Rock, Walworth, Washington, and Waukesha counties, plus parts of Dane, Columbia, and Dodge counties.


Slicing Off New Counties: Over the next few years, smaller counties were organized from this large chunk of land, including Racine (1839), Walworth (1840), Washington (1842), and Waukesha (1846).


Defining Milwaukee: As these counties separated, the boundaries of Milwaukee County were refined, establishing it as the central county along the western shore of Lake Michigan, home to the burgeoning city of Milwaukee.


Significance:
Milwaukee County became the most populous in Wisconsin due to its prime location and the growth of the City of Milwaukee, serving as a major urban center.


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This page was last updated 01/13/2026