Is De Witt County, IL's population growing or shrinking?
Refreshed annually
It shrank by 126 between 2024 and 2025. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. De Witt County, IL’s 0.83% annual decrease was primarily driven by deaths outpacing births.
In the decade between 2015 and 2025, De Witt County, IL’s population shrank by 6.6%.
-126
population change (2024 to 2025)
-0.83%
percent change in population (2024 to 2025)
Since 2000, De Witt County, IL’s population increased 2 out of 25 years. The largest increase occurred between 2009 and 2010, when De Witt County, IL gained 566 residents. Its largest decline occurred between 2016 and 2017 when there were 242 fewer residents.
De Witt County, IL lost 126 residents between 2024 and 2025.
Annual population change, 2001–2025
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What contributes to population change in De Witt County, IL?
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 negative in De Witt County, IL, with deaths exceeding births by 95.
- 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, De Witt County’s population change from immigration was negative with about three more people leaving for another country directly from De Witt County than coming.
- Domestic migration, moving between counties: Between 2024 to 2025, De Witt County’s population change from domestic migration was negative with about 27 more people moving to any other county in the US.
Between 2024 and 2025, natural change was the primary driver of population decline in De Witt County, IL.
Components of population change from previous year, 2011–2025
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
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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.
