Is population growing or shrinking?

Refreshed annually
It shrank by 107 between 2024 and 2025. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. Milwaukee County, WI’s 0.01% annual decrease was primarily driven by people moving to other states.
In the decade between 2015 and 2025, Milwaukee County, WI’s population shrank by 3.6%.

-107

population change (2024 to 2025)

-0.01%

percent change in population (2024 to 2025)
Since 2000, Milwaukee County, WI’s population increased 13 out of 25 years. The largest increase occurred between 2008 and 2009, when Milwaukee County, WI gained 6,300 residents. Its largest decline occurred between 2020 and 2021 when there were 13,900 fewer residents.

Milwaukee County, WI lost 107 residents between 2024 and 2025.

Annual population change, 2001–2025

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What contributes to population change in Milwaukee County, WI?

A county’s population is influenced by three factors:
  • Natural population change: If births outnumber deaths in a given year, natural population growth is positive. If deaths exceed births, it is negative. Between 2024 and 2025 natural population change was positive in Milwaukee County, WI, with births exceeding deaths by 2,600.
  • Immigration: international migration directly into or out of a county: If more people move in than move out, population change from immigration is positive. If more people move out than move in, it’s negative. Between 2024 to 2025, Milwaukee County, WI’s population change from immigration was positive with about 2,000 more people coming from another country directly to Milwaukee County, WI than leaving.
  • Domestic migration, moving between counties: Between 2024 to 2025, Milwaukee County, WI’s population change from domestic migration was negative with about 4,700 more people moving to any other county in the US.

Between 2024 and 2025, domestic migration was the primary driver of population decline in Milwaukee County, WI.

Components of population change from previous year, 2011–2025

How is the US population changing?

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.