Currently St. Croix County is the fastest growing County in the state of Wisconsin.
In a population projection report from the Wisconsin Department of Administration (DOA) (page 19) they state that “St. Croix County is projected to be the fastest-growing county, in terms of percentage change, through 2040, increasing by 41% (from census data in 2010). As a component county of the Minneapolis-Saint Paul metropolitan area, it also ranked as Wisconsin’s top-growing county from 1980 to 2010.”
This report was created in December of 2013 using 2010 census data. If the DOA updates this report with 2020 census data, we will share that information.
The image of the table below is from the DOA report and shows fastest growing counties in Wisconsin by percent from 2010 to 2040. St. Croix County is the fastest growing county with a projected 41.1% change in population followed by Calumet County with a 31.1% change and Kenosha County with a 26% change.
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