Allen County , Kentucky

Allen County: County in Kentucky, United States

Allen County locator map
Location of Allen County on Kentucky map.


Allen County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 19,956 and a population density of 22 people per km². After 9 years in 2019 county had an estimated population of 21,315 inhabitants. Its county seat is Scottsville. The county was created 206 years ago in 1815.


Allen County is located at 36°45'5"N 86°11'26"W (36.7513200, -86.1904200). It has 6 neighbors: Barren County, Monroe County, Simpson County, Warren County, Macon County and Sumner County.

Allen County Kentucky courthouse image
Allen County Kentucky courthouse

The largest city of Allen County is Scottsville with a population of 4,541. . See all Allen County cities & populated places.

Allen County Kentucky courthouse image

Allen County map

Allen County Quick Facts

Population : 21,315 (2019)
Country : United States of America
State : Kentucky (United States)
Different from : Allegheny County, Alleghany County, Alleghany County, Allegan County, Allegany County
Area : 912 km2
Water as percent of area : 2.1%
Land as percent of area : 97.9%
Named for : John Allen
Capital : Scottsville
Establishment : January 01, 1815
Time Zone : Central Time Zone
Local time : 10:55:00 (31st July 2021)
Density : 23 Pop. per km² as of 2019
Population growth : 6.38% (2010-2019)

Allen County has 6 neighbours.

  • Scottsville


The population of Allen County increased by 6.38% in 9 years.

Year Population % Change Method
2010 19,956 - census
2011 20,176 1.09% estimation process
2012 20,232 0.28% estimation process
2013 20,316 0.41% estimation process
2014 20,493 0.86% estimation process
2015 20,660 0.81% estimation process
2016 20,721 0.29% estimation process
2017 20,903 0.87% estimation process
2018 21,122 1.04% estimation process
2019 21,315 0.91% estimation process

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People born in Allen County (3)

People born in Allen County, including actor Charles Napier, politician Isaac Goodnight, Evangelist preacher Mordecai Ham, you can see a list of people who born in Allen County.

Other places with the same name (3)

Allen County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Allen County.

City Name Population Title
Scottsville 4,541 City in Kentucky

Kentucky Other Counties (more counties)

County Name Population Title
Kentucky 4,467,673 State of the United States of America
Jefferson County 766,757 County in Alabama, United States
Louisville 760,026 County seat of Jefferson County, Kentucky, United States
Fayette County 323,152 County in West Virginia, United States
Lexington-Fayette 314,488 Consolidated city-county in Kentucky, United States
Meads 288,649 Unincorporated community in Boyd County, Kentucky
Ironville 288,649 Unincorporated community in Boyd County, Kentucky
Lexington 225,366 City in Fayette County, Kentucky, United States
Kenton County 166,998 County in Kentucky, United States
Boone County 133,581 County in Kentucky, United States
Warren County 132,896 County in Kentucky, United States
Hardin County 110,958 County in Tennessee, United States
Daviess County 101,511 County in Kentucky, United States
Campbell County 93,584 County in northeastern Wyoming, United States
Madison County 92,987 County in Kentucky, United States
Bullitt County 81,676 County in Kentucky, United States

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