Is Jay County, IN's population growing or shrinking?
Refreshed annually
It shrank by 141 between 2024 and 2025. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. Jay County, IN’s 0.7% annual decrease was primarily driven by people moving to other states.
In the decade between 2015 and 2025, Jay County, IN’s population shrank by 4.8%.
-141
population change (2024 to 2025)
-0.7%
percent change in population (2024 to 2025)
Since 2000, Jay County, IN’s population increased 5 out of 25 years. The largest increase occurred between 2023 and 2024, when Jay County, IN gained 162 residents. Its largest decline occurred between 2018 and 2019 when there were 275 fewer residents.
Jay County, IN lost 141 residents between 2024 and 2025.
Annual population change, 2001–2025
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What contributes to population change in Jay County, IN?
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 Jay County, IN, with births exceeding deaths by 29.
- 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, Jay County, IN’s population change from immigration was positive with about one more person coming from another country directly to Jay County, IN than leaving.
- Domestic migration, moving between counties: Between 2024 to 2025, Jay County, IN’s population change from domestic migration was negative with about 170 more people moving to any other county in the US.
Between 2024 and 2025, domestic migration was the primary driver of population decline in Jay County, IN.
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.
