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Population Review

What is the population of Waukesha County, WI?

Waukesha County in Wisconsin has a population of 409,040, per Census ACS 5-Year estimates. The median household income is $104,100 and the median age is 43.3.

Context

Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Waukesha County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.

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Frequently Asked Questions

Waukesha County in Wisconsin has a population of 409,040, per Census ACS 5-Year estimates. The median household income is $104,100 and the median age is 43.3.