Foto: NASA Earth Observatory/NOAA NGDC

Kentucky: population and ages

4,61 milioni di people lived in Kentucky on 1 July 2025, by the US Census Bureau’s estimate.

Half of them were younger than 39,5 years. For the United States as a whole, the median age was 39,4.

Since 1 July 2020, the population has grown by 2,2%, or 98.593 people. The United States changed by +3,1% in the same years.

  • Median age39,5
  • Under 1822,1%
  • 65 and over18,8%
  • Rank by population26 of 51
  • Change since 2020+2,2%
Population pyramid, Kentucky, 1 July 2025MaschiFemmine0102030405060708085+020K20K40K40K60K60K
Population pyramid, Kentucky, 1 July 2025

You in Kentucky

Choose Kentucky as your state, next to the United States, in Your life and in the age tools: your age among the people who live there, and the generations they belong to.

Population, 2010 to 2025

Population on 1 July01 Mln2 Mln3 Mln4 Mln5 Mln2010201520202025
2025 Kentucky: 4,6 Mln

Estimates for 2010 to 2019 are based on the 2010 census, those from 2020 on the 2020 census. The Census Bureau does not join the two series, so part of any step between 2019 and 2020 comes from the new base, not from a change in population.

Ages

In 2025, 22,1% of the people in Kentucky were under 18 and 18,8% were 65 or older. For the United States: 21,1% and 18,9%.

Median age on 1 July0,010,020,030,040,02010201520202025KentuckyStati Uniti
2025 Kentucky: 39,5Stati Uniti: 39,4

Ages are counted up to 85 and over, and the median age is worked out from them.

States of a similar size
  1. South Carolina5,6 Mln
  2. Alabama5,2 Mln
  3. Louisiana4,6 Mln
  4. Kentucky4,6 Mln
  5. Oregon4,3 Mln
  6. Oklahoma4,1 Mln
  7. Connecticut3,7 Mln

Fonti: US Census Bureau, Population Division, state population estimates by single year of age and sex (Vintage 2025 and Vintage 2020), public domain.