Share of the population by age and sex, five-year groups

Population of Kentucky, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2025  +1 +5

4,606,864 people lived in Kentucky on July 1, 2025: the 26th-largest population among the 50 states and the District of Columbia. The median age was 39.5 years (United States: 39.4); more residents are 65 or older (18.8%) than under 15 (18.1%): an ageing, top-heavy pyramid. There were 96.8 men for every 100 women. Since 2010 the population has grown by 5.9%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2025
Population
4,606,864
Rank by population
26th of 51
Median age
39.5
Men per 100 women
96.8
Under 15
18.1%
15–64
63.0%
65 and over
18.8%
Child dependency
28.7
Old-age dependency
29.9
Change since 2010
+5.9%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2025
AgeMenWomenTotalShare
0-4136,094130,149266,2435.8%
5-9142,423135,998278,4216.0%
10-14148,702140,894289,5966.3%
15-19154,881147,158302,0396.6%
20-24157,684149,451307,1356.7%
25-29151,788148,261300,0496.5%
30-34147,978146,476294,4546.4%
35-39145,472146,206291,6786.3%
40-44142,083143,992286,0756.2%
45-49138,425139,905278,3306.0%
50-54136,302139,069275,3716.0%
55-59135,346140,977276,3236.0%
60-64140,144152,987293,1316.4%
65-69129,054145,655274,7096.0%
70-74106,663124,822231,4855.0%
75-7978,71596,637175,3523.8%
80-8443,39558,680102,0752.2%
85+30,98853,41084,3981.8%
How Kentucky compares with similar-sized states, 2025
RankStateResidentsRelative
23 South Carolina 5,570,274
24 Alabama 5,193,088
25 Louisiana 4,618,189
26 Kentucky 4,606,864
27 Oregon 4,273,586
28 Oklahoma 4,123,288
29 Connecticut 3,688,496
Frequently asked questions about Kentucky's population
What is the population of Kentucky?
Kentucky had an estimated 4,606,864 residents on July 1, 2025, according to the U.S. Census Bureau, Population Estimates Program. That ranks 26th among the 51 states and the District of Columbia.
What is the median age in Kentucky?
The median age in Kentucky was 39.5 years in 2025, the 29th oldest of the 51 states and DC. That is 0.1 years older than the national median of 39.4.
How many people in Kentucky are 65 or older?
About 868,019 residents of Kentucky (18.8%) were 65 or older in 2025, against 18.1% under 15 and 63.0% aged 15 to 64.
What does the population pyramid of Kentucky show?
In 2025, Kentucky: more residents are 65 or older (18.8%) than under 15 (18.1%): an ageing, top-heavy pyramid. There were 96.8 men for every 100 women.
How fast is the population of Kentucky changing?
The population of Kentucky grew by 5.9% between 2010 and 2025, and by 0.5% in the last year.
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