How many people live in Allen County, KY?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 22,000 people living in Allen County, KY. That makes Allen County the 53rd-most populous county in Kentucky. It is home to 0.48% of people living in the state.
22K
population of Allen County, KY (2024)
0.48%
County share of the Kentucky population (2024)
About 22,000 people lived in Allen County, KY in 2024.
Population estimates, 2000–2024
What are Allen County, KY’s age demographics?
About 4,100 Allen County, KY residents are aged 65 and older in 2024. That represents 18.7% of its population. For comparison, the age group represents 18.1% of Kentucky’s population and 18% in the US overall.
Another 5,000 Allen County residents, or 22.8% of the population, were children under 18. For comparison, the age group represents 22.4% of Kentucky’s population and 21.6% in the US overall.
A lower share of Allen County, KY's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Allen County, KY’s racial and ethnic demographics?
Non-Hispanic white residents make up 93.2% of the Allen County, KY population, higher than the national share of 57.5%.
In contrast, Allen County’s Hispanic population accounts for 3.1%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.4% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Allen County, KY has a higher share of a non-Hispanic white population than Kentucky as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Allen County, KY is Scottsville with about 4,600 residents in 2024.
Cities and towns in Allen County, KY ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Scottsville | 4,574 |
| 2. | Balance of Allen County | 17,463 |
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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.
