With 21,293 people, Allen County is a county in Kentucky. Four-year degrees are less common here than nationally, at 18% of adults. 1% of locals were born outside the United States. The typical home is worth $192,300, having roughly tripled since 2000. Owners hold 74% of the housing stock. Renters pay $844 a month at the median.
At a glance
Lower income
median household income $61,403, below the US median
US median: $82,259
Mid-age
median age 40.7
US median: 38.9
Less educated
18% hold a bachelor's degree
US average: 36%
Less affordable
home values up 62%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Allen County
What changed most since 1990
Median home value (2024 dollars)$84,482 → $192,300(+128%)US over the same years: +67%
White share98.8% → 92.7%(−6.1 pts)US over the same years: −17.8 pts
Poverty rate24.6% → 13.5%(−11.1 pts)US over the same years: −0.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)37.1%(527)
US avg: 26.4%
Gulf War (1990s)22%(312)
US avg: 24.3%
Vietnam era31.8%(452)
US avg: 33.1%
Korean War3.3%(47)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 1,421 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Allen County, decade by decade
Allen County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
14,628
$42,997
$84,482
4.6%
2.9
2000
17,800
$56,905
$118,590
9.1%
7.0
2010
19,956
$50,705
$128,752
10.6%
9.2
2020
20,588
$53,548
$149,444
17.3%
18.5
2024
21,293
$61,403
$192,300
18.4%
17.3
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
