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 2019, at 66.1%. Hickman County had the lowest, at 53.5%. The median was 59% and the figure for Kentucky was 60.6%. Source: the U.S. Census Bureau.

Highest66.1Rowan County
Lowest53.5Hickman County
Median59120 counties
Kentucky60.6History

Top 40 counties, 2019

Rowan County: 66.1 %Rowan County66.1Fayette County: 65 %Fayette County65Madison County: 64.3 %Madison County64.3Martin County: 63.8 %Martin County63.8Morgan County: 63.7 %Morgan County63.7Warren County: 63.4 %Warren County63.4Calloway County: 63.2 %Calloway County63.2Lee County: 62.8 %Lee County62.8Campbell County: 62.8 %Campbell County62.8Elliott County: 62.5 %Elliott County62.5Clay County: 62.5 %Clay County62.5Lyon County: 62 %Lyon County62Jefferson County: 61.9 %Jefferson County61.9Scott County: 61.7 %Scott County61.7Spencer County: 61.4 %Spencer County61.4McCreary County: 61.3 %McCreary County61.3Perry County: 61.3 %Perry County61.3Christian County: 61.3 %Christian County61.3Kenton County: 61.2 %Kenton County61.2Bullitt County: 61.2 %Bullitt County61.2Hardin County: 61.1 %Hardin County61.1Meade County: 61 %Meade County61Franklin County: 60.7 %Franklin County60.7Pike County: 60.7 %Pike County60.7Boyle County: 60.6 %Boyle County60.6Leslie County: 60.6 %Leslie County60.6Pendleton County: 60.4 %Pendleton County60.4Knott County: 60.3 %Knott County60.3Breathitt County: 60.3 %Breathitt County60.3Powell County: 60.3 %Powell County60.3Bell County: 60.1 %Bell County60.1Clark County: 60.1 %Clark County60.1Gallatin County: 60.1 %Gallatin County60.1Magoffin County: 60.1 %Magoffin County60.1Adair County: 60 %Adair County60Floyd County: 60 %Floyd County60Laurel County: 59.9 %Laurel County59.9Boone County: 59.9 %Boone County59.9Anderson County: 59.9 %Anderson County59.9Trimble County: 59.9 %Trimble County59.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2019 (%)Change on 2018
1Rowan County66.1-0.3 pts
2Fayette County65-0.5 pts
3Madison County64.3-0.5 pts
4Martin County63.8-0.2 pts
5Morgan County63.7-0.4 pts
6Warren County63.4-0.5 pts
7Calloway County63.2-0.4 pts
8Lee County62.8+0.9 pts
9Campbell County62.8-0.6 pts
10Elliott County62.5-0 pts
11Clay County62.5-0.3 pts
12Lyon County62-0.3 pts
13Jefferson County61.9-0.3 pts
14Scott County61.7-0.3 pts
15Spencer County61.4-0.3 pts
16McCreary County61.3-0.3 pts
17Perry County61.3-0.3 pts
18Christian County61.3-0.2 pts
19Kenton County61.2-0.2 pts
20Bullitt County61.2-0.4 pts
21Hardin County61.1-0.3 pts
22Meade County61-0.6 pts
23Franklin County60.7-0.2 pts
24Pike County60.7-0.5 pts
25Boyle County60.6-0.1 pts
26Leslie County60.6-0.4 pts
27Pendleton County60.4-0.5 pts
28Knott County60.3-0.8 pts
29Breathitt County60.3-0.7 pts
30Powell County60.3-0.2 pts
31Bell County60.1-0.2 pts
32Clark County60.1-0.2 pts
33Gallatin County60.1+0.3 pts
34Magoffin County60.1-0.5 pts
35Adair County60+0.1 pts
36Floyd County60-0.3 pts
37Laurel County59.9-0.3 pts
38Boone County59.9-0.3 pts
39Anderson County59.9-0.5 pts
40Trimble County59.9-0.1 pts
41Montgomery County59.8-0.2 pts
42Simpson County59.7-0 pts
43Shelby County59.7-0.1 pts
44Nelson County59.7-0.4 pts
45Johnson County59.6-0.4 pts
46Letcher County59.6-0.4 pts
47Jessamine County59.6-0.4 pts
48Grant County59.50 pts
49Oldham County59.5-0.4 pts
50Boyd County59.4-0.4 pts
51Harrison County59.4-0.6 pts
52Lawrence County59.3-0.4 pts
53Muhlenberg County59.2-0.4 pts
54Jackson County59.2-0.5 pts
55Rockcastle County59.2-0.2 pts
56Taylor County59.1-0.3 pts
57Edmonson County59.1-0.3 pts
58Harlan County59-0.5 pts
59Marion County59-0.3 pts
60Henderson County59-0.3 pts
61Allen County58.9-0.4 pts
62Grayson County58.90 pts
63Carter County58.9-0.2 pts
64Fulton County58.9-0.5 pts
65Whitley County58.9-0.3 pts
66Woodford County58.8-0.4 pts
67Carroll County58.8-0.4 pts
68Henry County58.8-0 pts
69Mercer County58.7-0.3 pts
70Knox County58.7-0.2 pts
71Daviess County58.6-0.2 pts
72Estill County58.6-0.4 pts
73Webster County58.5-0.7 pts
74Garrard County58.5-0.5 pts
75Lewis County58.4-0.4 pts
76Logan County58.4-0.2 pts
77Union County58.4-1.2 pts
78Bracken County58.3-0.8 pts
79Bourbon County58.2-0.4 pts
80Mason County58.2-0.1 pts
81Washington County58.2-0.1 pts
82Hopkins County58.2-0.6 pts
83McCracken County58.2-0.4 pts
84Larue County58.1-0.6 pts
85Fleming County58-0.1 pts
86Barren County57.9-0.3 pts
87Hancock County57.9+0.1 pts
88Owen County57.9-0.5 pts
89Pulaski County57.8-0.3 pts
90Lincoln County57.8-0.4 pts
91Butler County57.7-0.2 pts
92Wayne County57.6-0.6 pts
93Livingston County57.6-0.3 pts
94Monroe County57.6-0.2 pts
95Metcalfe County57.6-0.5 pts
96Breckinridge County57.5-0.3 pts
97Ballard County57.5-0.7 pts
98Bath County57.4-0.3 pts
99Green County57.4-0.2 pts
100Nicholas County57.4-0.4 pts
101Hart County57.3-0.3 pts
102Russell County57.2-0.3 pts
103Todd County57.2-0.1 pts
104Marshall County57.1-0.1 pts
105Greenup County57-0.3 pts
106Wolfe County57-0.6 pts
107Owsley County57-0.6 pts
108Crittenden County57-0.2 pts
109Ohio County57-0.2 pts
110Menifee County56.7-0.9 pts
111Caldwell County56.7-0.5 pts
112Clinton County56.7-0.1 pts
113Graves County56.7-0.6 pts
114Casey County56.4-0.2 pts
115McLean County56.3+0.1 pts
116Robertson County55.7-0.7 pts
117Cumberland County55.6-0.1 pts
118Carlisle County55.6-0.2 pts
119Trigg County55.1-0.4 pts
120Hickman County53.5-0.3 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, 2019) [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, 2019. 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=2019. 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, 2019. 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=2019.

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, 2019 [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=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_kentucky_by_2019,
  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, 2019}},
  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=2019. 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, 2019
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=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/kentucky-counties?period=2019.
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 66.1% in 2019, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Hickman County, with 53.5% in 2019.

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