Largest Welsh population, Wisconsin counties

Wisconsin counties ranked by the number of residents who are Welsh ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide. The median across all 72 is 152. Biggest climber in the top 100 since 2020: Calumet County, WI, up 27 places to #30.