Is population growing or shrinking?

Updated annually
It grew by 38,600 between 2024 and 2025. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. Indiana’s 0.56% annual increase was primarily driven by immigration to the state. In the decade between 2015 and 2025, Indiana’s population grew by 5.2%.

+38.6K

population change (2024 to 2025)

+0.56%

percent change in population (2024 to 2025)
Since 2000, Indiana's population increased in 25 of 25 years. The largest increase occurred between 2005 and 2006, when it gained 54,100 residents. The state's smallest increase during the 21st century occurred between 2014 and 2015 when it gained 18,800 residents.

Indiana gained 38,600 residents between 2024 and 2025.

Annual population change

A state’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 to 2025 natural population change was positive in Indiana, with births exceeding deaths by 8,600.
  • Immigration: international migration directly into or out of a state. 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. Indiana’s population change from immigration was positive, with about 17,900 more people coming from another country to Indiana than leaving.
  • Domestic migration, moving between states: Indiana’s population change from domestic migration was positive, with about 12,200 more people moving to Indiana from other states than leaving.

Between 2024 and 2025, immigration was the primary driver of population growth in Indiana.

Components of population change

Among 92 county equivalents, Hamilton County had the largest population growth in Indiana, welcoming 7,116 new residents. Monroe County lost the most, with a loss of 350 residents. County-level population data is available as of 2024.
Boone County led Indiana in percent population increase between 2023 and 2024 at 3.4%. Fulton County ranked last with a 1.6% decline.

Between 2023 and 2024, Boone County gained 3.4% in population, the largest increase in Indiana.

Population change

Between 2015 and 2025, Indiana’s population has increased by 5.2%. During that same period, the US population grew by 6.2%. Indiana ranks 24th among states in population growth over that decade.

Indiana ranked 24th in population growth between 2015 and 2025.

Percent change in population

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Methodology

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

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

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.