Data / Rankings / Population aged 18 to 64 / Counties in Kentucky

Counties in Kentucky by population aged 18 to 64

Rowan County had the highest population aged 18 to 64 of 120 counties in 2015, at 67.6%. Hickman County had the lowest, at 55.6%. The median was 60.2% and the figure for Kentucky was 61.8%. Source: the U.S. Census Bureau.

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Highest67.6Rowan County
Lowest55.6Hickman County
Median60.2120 counties
Kentucky61.8History

Map of counties, 2015

Adair County: 61 %Allen County: 59.4 %Anderson County: 61.1 %Ballard County: 58.2 %Barren County: 59.2 %Bath County: 58.9 %Bell County: 61.4 %Boone County: 60.7 %Bourbon County: 59.6 %Boyd County: 60.7 %Boyle County: 61.8 %Bracken County: 60 %Breathitt County: 62.7 %Breckinridge County: 58.8 %Bullitt County: 62.3 %Butler County: 59 %Caldwell County: 58 %Calloway County: 65.2 %Campbell County: 63.9 %Carlisle County: 57.3 %Carroll County: 59.7 %Carter County: 60.2 %Casey County: 58.2 %Christian County: 61.7 %Clark County: 60.9 %Clay County: 64.4 %Clinton County: 57.5 %Crittenden County: 58 %Cumberland County: 57.1 %Daviess County: 59.6 %Edmonson County: 59.9 %Elliott County: 64 %Estill County: 60.2 %Fayette County: 66.6 %Fleming County: 59 %Floyd County: 62.1 %Franklin County: 62.4 %Fulton County: 59.8 %Gallatin County: 61.1 %Garrard County: 60 %Grant County: 60 %Graves County: 58 %Grayson County: 59.7 %Green County: 58.3 %Greenup County: 58.4 %Hancock County: 58.4 %Hardin County: 62.4 %Harlan County: 61.4 %Harrison County: 60.1 %Hart County: 58.6 %Henderson County: 60.6 %Henry County: 59.7 %Hickman County: 55.6 %Hopkins County: 60.1 %Jackson County: 61.3 %Jefferson County: 62.8 %Jessamine County: 61.1 %Johnson County: 60.9 %Kenton County: 62.3 %Knott County: 63.1 %Knox County: 59.4 %Larue County: 59.5 %Laurel County: 61.2 %Lawrence County: 60.9 %Lee County: 62.9 %Leslie County: 61.9 %Letcher County: 61.7 %Lewis County: 59.9 %Lincoln County: 59.3 %Livingston County: 58.9 %Logan County: 58.8 %Lyon County: 63 %McCracken County: 59.9 %McCreary County: 63.5 %McLean County: 57.9 %Madison County: 65.4 %Magoffin County: 62.1 %Marion County: 59.8 %Marshall County: 58.2 %Martin County: 65.6 %Mason County: 59.4 %Meade County: 61.8 %Menifee County: 59.2 %Mercer County: 59.6 %Metcalfe County: 58.5 %Monroe County: 58.5 %Montgomery County: 60.4 %Morgan County: 65.5 %Muhlenberg County: 60.4 %Nelson County: 60.8 %Nicholas County: 58.6 %Ohio County: 58.2 %Oldham County: 61.4 %Owen County: 59.2 %Owsley County: 60.7 %Pendleton County: 62.1 %Perry County: 63.3 %Pike County: 62.8 %Powell County: 61.5 %Pulaski County: 59 %Robertson County: 57.3 %Rockcastle County: 60.6 %Rowan County: 67.6 %Russell County: 58.6 %Scott County: 62.7 %Shelby County: 60.6 %Simpson County: 59.9 %Spencer County: 62.6 %Taylor County: 60.5 %Todd County: 57.2 %Trigg County: 56.8 %Trimble County: 60.7 %Union County: 62 %Warren County: 65 %Washington County: 59.8 %Wayne County: 59.4 %Webster County: 60.6 %Whitley County: 60.1 %Wolfe County: 58.6 %Woodford County: 61.2 %
  • Under 59
  • 59 to 60
  • 60 to 61
  • 61 to 62
  • 62 and over
%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Rowan County: 67.6 %Rowan County67.6Fayette County: 66.6 %Fayette County66.6Martin County: 65.6 %Martin County65.6Morgan County: 65.5 %Morgan County65.5Madison County: 65.4 %Madison County65.4Calloway County: 65.2 %Calloway County65.2Warren County: 65 %Warren County65Clay County: 64.4 %Clay County64.4Elliott County: 64 %Elliott County64Campbell County: 63.9 %Campbell County63.9McCreary County: 63.5 %McCreary County63.5Perry County: 63.3 %Perry County63.3Knott County: 63.1 %Knott County63.1Lyon County: 63 %Lyon County63Lee County: 62.9 %Lee County62.9Pike County: 62.8 %Pike County62.8Jefferson County: 62.8 %Jefferson County62.8Breathitt County: 62.7 %Breathitt County62.7Scott County: 62.7 %Scott County62.7Spencer County: 62.6 %Spencer County62.6Franklin County: 62.4 %Franklin County62.4Hardin County: 62.4 %Hardin County62.4Bullitt County: 62.3 %Bullitt County62.3Kenton County: 62.3 %Kenton County62.3Pendleton County: 62.1 %Pendleton County62.1Floyd County: 62.1 %Floyd County62.1Magoffin County: 62.1 %Magoffin County62.1Union County: 62 %Union County62Leslie County: 61.9 %Leslie County61.9Meade County: 61.8 %Meade County61.8Boyle County: 61.8 %Boyle County61.8Letcher County: 61.7 %Letcher County61.7Christian County: 61.7 %Christian County61.7Powell County: 61.5 %Powell County61.5Oldham County: 61.4 %Oldham County61.4Bell County: 61.4 %Bell County61.4Harlan County: 61.4 %Harlan County61.4Jackson County: 61.3 %Jackson County61.3Laurel County: 61.2 %Laurel County61.2Woodford County: 61.2 %Woodford County61.2Rowan County: 67.6 %Rowan County67.6Fayette County: 66.6 %Fayette County66.6Martin County: 65.6 %Martin County65.6Morgan County: 65.5 %Morgan County65.5Madison County: 65.4 %Madison County65.4Calloway County: 65.2 %Calloway County65.2Warren County: 65 %Warren County65Clay County: 64.4 %Clay County64.4Elliott County: 64 %Elliott County64Campbell County: 63.9 %Campbell County63.9McCreary County: 63.5 %McCreary County63.5Perry County: 63.3 %Perry County63.3Knott County: 63.1 %Knott County63.1Lyon County: 63 %Lyon County63Lee County: 62.9 %Lee County62.9Pike County: 62.8 %Pike County62.8Jefferson County: 62.8 %Jefferson County62.8Breathitt County: 62.7 %Breathitt County62.7Scott County: 62.7 %Scott County62.7Spencer County: 62.6 %Spencer County62.6Franklin County: 62.4 %Franklin County62.4Hardin County: 62.4 %Hardin County62.4Bullitt County: 62.3 %Bullitt County62.3Kenton County: 62.3 %Kenton County62.3Pendleton County: 62.1 %Pendleton County62.1Floyd County: 62.1 %Floyd County62.1Magoffin County: 62.1 %Magoffin County62.1Union County: 62 %Union County62Leslie County: 61.9 %Leslie County61.9Meade County: 61.8 %Meade County61.8Boyle County: 61.8 %Boyle County61.8Letcher County: 61.7 %Letcher County61.7Christian County: 61.7 %Christian County61.7Powell County: 61.5 %Powell County61.5Oldham County: 61.4 %Oldham County61.4Bell County: 61.4 %Bell County61.4Harlan County: 61.4 %Harlan County61.4Jackson County: 61.3 %Jackson County61.3Laurel County: 61.2 %Laurel County61.2Woodford County: 61.2 %Woodford County61.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Rowan County67.6-0.3 pts
2Fayette County66.6-0.2 pts
3Martin County65.6-0.5 pts
4Morgan County65.5-0.4 pts
5Madison County65.4-0.4 pts
6Calloway County65.2-0.2 pts
7Warren County65-0.2 pts
8Clay County64.4-0.5 pts
9Elliott County640 pts
10Campbell County63.9-0.2 pts
11McCreary County63.5+0.1 pts
12Perry County63.3-0.4 pts
13Knott County63.1-0.3 pts
14Lyon County63+0.9 pts
15Lee County62.9+0.2 pts
16Pike County62.8-0.5 pts
17Jefferson County62.8-0.2 pts
18Breathitt County62.7-0.2 pts
19Scott County62.7-0.3 pts
20Spencer County62.6-0.3 pts
21Franklin County62.4-0.5 pts
22Hardin County62.4-0.3 pts
23Bullitt County62.3-0.4 pts
24Kenton County62.3-0.4 pts
25Pendleton County62.1-0.7 pts
26Floyd County62.1-0.4 pts
27Magoffin County62.1-0.1 pts
28Union County62-0.6 pts
29Leslie County61.9-0.6 pts
30Meade County61.8-0.4 pts
31Boyle County61.8-0.4 pts
32Letcher County61.7-0.3 pts
33Christian County61.7+0.1 pts
34Powell County61.5-0.5 pts
35Oldham County61.4-0.2 pts
36Bell County61.4-0 pts
37Harlan County61.4-0.2 pts
38Jackson County61.3-0.5 pts
39Laurel County61.2-0.2 pts
40Woodford County61.2-0.3 pts
41Anderson County61.1-0.4 pts
42Gallatin County61.1+0.3 pts
43Jessamine County61.1-0.2 pts
44Adair County61-0.9 pts
45Johnson County60.9-0.7 pts
46Lawrence County60.9-0.5 pts
47Clark County60.9-0.2 pts
48Nelson County60.8-0.3 pts
49Boone County60.7-0.4 pts
50Boyd County60.7-0.3 pts
51Owsley County60.7-0.2 pts
52Trimble County60.7+0.2 pts
53Shelby County60.6-0.3 pts
54Henderson County60.6-0.4 pts
55Webster County60.6-0.2 pts
56Rockcastle County60.6-0.4 pts
57Taylor County60.5-0.2 pts
58Muhlenberg County60.4-0.4 pts
59Montgomery County60.4-0.4 pts
60Carter County60.2-0.5 pts
61Estill County60.2-0.3 pts
62Harrison County60.10 pts
63Whitley County60.1-0.6 pts
64Hopkins County60.1-0.2 pts
65Garrard County60-0.6 pts
66Bracken County60-0.3 pts
67Grant County60-0.1 pts
68Simpson County59.9-0.1 pts
69Lewis County59.9-0.5 pts
70McCracken County59.9-0.2 pts
71Edmonson County59.9-0.7 pts
72Washington County59.8-0.1 pts
73Marion County59.8-0.4 pts
74Fulton County59.8-0.1 pts
75Henry County59.7-0.3 pts
76Grayson County59.7-0.4 pts
77Carroll County59.7-0.5 pts
78Bourbon County59.6-0.5 pts
79Mercer County59.6-0.4 pts
80Daviess County59.6-0.3 pts
81Larue County59.5-0.6 pts
82Allen County59.4-0.3 pts
83Knox County59.4-0.2 pts
83Wayne County59.4-0.6 pts
85Mason County59.4-0.1 pts
86Lincoln County59.3-0.3 pts
87Owen County59.20 pts
88Menifee County59.2-0.7 pts
89Barren County59.2-0.2 pts
90Butler County59-0.5 pts
91Fleming County59-0.5 pts
92Pulaski County59-0.4 pts
93Bath County58.9-0.1 pts
94Livingston County58.9-0.8 pts
95Breckinridge County58.8-0.6 pts
96Logan County58.8+0.1 pts
97Wolfe County58.6+0.2 pts
98Nicholas County58.6-0.5 pts
99Russell County58.6-0.4 pts
100Hart County58.6-0.4 pts
101Metcalfe County58.5-0.6 pts
102Monroe County58.5-0.4 pts
103Hancock County58.4-0.4 pts
104Greenup County58.4-0.4 pts
105Green County58.3-0.7 pts
106Casey County58.2-0.6 pts
107Marshall County58.2-0.5 pts
108Ohio County58.2-0.4 pts
109Ballard County58.2-0.5 pts
110Graves County58-0.1 pts
111Caldwell County58-0 pts
112Crittenden County58-0.2 pts
113McLean County57.9-0.4 pts
114Clinton County57.5-0.5 pts
115Carlisle County57.3-0.5 pts
116Robertson County57.3-0.5 pts
117Todd County57.2-0.4 pts
118Cumberland County57.1-0.5 pts
119Trigg County56.8-0.1 pts
120Hickman County55.6-0.9 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Kentucky by population aged 18 to 64, 2015) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Kentucky by population aged 18 to 64, 2015. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Kentucky by population aged 18 to 64, 2015. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Kentucky by population aged 18 to 64, 2015 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_kentucky_by_2015,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Kentucky by population aged 18 to 64, 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Kentucky by population aged 18 to 64, 2015
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2015.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population aged 18 to 64?

Rowan County, with 67.6% in 2015, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Hickman County, with 55.6% in 2015.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in Kentucky: more rankings