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

Counties in Kansas by population aged 18 to 64

Riley County had the highest population aged 18 to 64 of 105 counties in 2020, at 72.7%. Rawlins County had the lowest, at 49.8%. The median was 55% and the figure for Kansas was 59.1%. Source: the U.S. Census Bureau.

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Highest72.7Riley County
Lowest49.8Rawlins County
Median55105 counties
Kansas59.1History

Map of counties, 2020

Allen County: 56.5 %Anderson County: 53.3 %Atchison County: 59.9 %Barber County: 52.1 %Barton County: 55.6 %Bourbon County: 54.5 %Brown County: 53.9 %Butler County: 58 %Chase County: 56.5 %Chautauqua County: 52.9 %Cherokee County: 56.6 %Cheyenne County: 51.3 %Clark County: 54.4 %Clay County: 53 %Cloud County: 55.1 %Coffey County: 54.7 %Comanche County: 50.6 %Cowley County: 57.3 %Crawford County: 60.9 %Decatur County: 51.3 %Dickinson County: 55.6 %Doniphan County: 58.1 %Douglas County: 67.1 %Edwards County: 54.9 %Elk County: 50.2 %Ellis County: 62.7 %Ellsworth County: 58.6 %Finney County: 59.4 %Ford County: 57.8 %Franklin County: 58.2 %Geary County: 61.1 %Gove County: 51.4 %Graham County: 51.4 %Grant County: 56.1 %Gray County: 54 %Greeley County: 54.2 %Greenwood County: 52.3 %Hamilton County: 57.5 %Harper County: 51.7 %Harvey County: 55 %Haskell County: 55.7 %Hodgeman County: 53.4 %Jackson County: 54.9 %Jefferson County: 56.6 %Jewell County: 50.6 %Johnson County: 60.1 %Kearny County: 55.5 %Kingman County: 55 %Kiowa County: 55.2 %Labette County: 55.2 %Lane County: 52.4 %Leavenworth County: 60.5 %Lincoln County: 51.4 %Linn County: 55.4 %Logan County: 54.2 %Lyon County: 61.1 %McPherson County: 57 %Marion County: 54.8 %Marshall County: 53.4 %Meade County: 55 %Miami County: 57.5 %Mitchell County: 51.5 %Montgomery County: 55.6 %Morris County: 53.5 %Morton County: 55.2 %Nemaha County: 52.9 %Neosho County: 55.5 %Ness County: 51.9 %Norton County: 61 %Osage County: 55.4 %Osborne County: 52.1 %Ottawa County: 55.9 %Pawnee County: 59.2 %Phillips County: 51.8 %Pottawatomie County: 55.4 %Pratt County: 54.8 %Rawlins County: 49.8 %Reno County: 57.2 %Republic County: 51.7 %Rice County: 56.6 %Riley County: 72.7 %Rooks County: 54.4 %Rush County: 53.3 %Russell County: 53.7 %Saline County: 58.1 %Scott County: 54.5 %Sedgwick County: 59.5 %Seward County: 58.8 %Shawnee County: 57.5 %Sheridan County: 52.2 %Sherman County: 55.8 %Smith County: 51 %Stafford County: 53.8 %Stanton County: 55.3 %Stevens County: 55.8 %Sumner County: 55.3 %Thomas County: 58.3 %Trego County: 53.7 %Wabaunsee County: 55 %Wallace County: 51.2 %Washington County: 52.6 %Wichita County: 54 %Wilson County: 54.4 %Woodson County: 55 %Wyandotte County: 60 %
  • Under 52
  • 52 to 54
  • 54 to 55
  • 55 to 56
  • 56 to 58
  • 58 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2020

Riley County: 72.7 %Riley County72.7Douglas County: 67.1 %Douglas County67.1Ellis County: 62.7 %Ellis County62.7Geary County: 61.1 %Geary County61.1Lyon County: 61.1 %Lyon County61.1Norton County: 61 %Norton County61Crawford County: 60.9 %Crawford County60.9Leavenworth County: 60.5 %Leavenworth County60.5Johnson County: 60.1 %Johnson County60.1Wyandotte County: 60 %Wyandotte County60Atchison County: 59.9 %Atchison County59.9Sedgwick County: 59.5 %Sedgwick County59.5Finney County: 59.4 %Finney County59.4Pawnee County: 59.2 %Pawnee County59.2Seward County: 58.8 %Seward County58.8Ellsworth County: 58.6 %Ellsworth County58.6Thomas County: 58.3 %Thomas County58.3Franklin County: 58.2 %Franklin County58.2Saline County: 58.1 %Saline County58.1Doniphan County: 58.1 %Doniphan County58.1Butler County: 58 %Butler County58Ford County: 57.8 %Ford County57.8Miami County: 57.5 %Miami County57.5Shawnee County: 57.5 %Shawnee County57.5Hamilton County: 57.5 %Hamilton County57.5Cowley County: 57.3 %Cowley County57.3Reno County: 57.2 %Reno County57.2McPherson County: 57 %McPherson County57Rice County: 56.6 %Rice County56.6Jefferson County: 56.6 %Jefferson County56.6Cherokee County: 56.6 %Cherokee County56.6Allen County: 56.5 %Allen County56.5Chase County: 56.5 %Chase County56.5Grant County: 56.1 %Grant County56.1Ottawa County: 55.9 %Ottawa County55.9Stevens County: 55.8 %Stevens County55.8Sherman County: 55.8 %Sherman County55.8Haskell County: 55.7 %Haskell County55.7Montgomery County: 55.6 %Montgomery County55.6Barton County: 55.6 %Barton County55.6Riley County: 72.7 %Riley County72.7Douglas County: 67.1 %Douglas County67.1Ellis County: 62.7 %Ellis County62.7Geary County: 61.1 %Geary County61.1Lyon County: 61.1 %Lyon County61.1Norton County: 61 %Norton County61Crawford County: 60.9 %Crawford County60.9Leavenworth County: 60.5 %Leavenworth County60.5Johnson County: 60.1 %Johnson County60.1Wyandotte County: 60 %Wyandotte County60Atchison County: 59.9 %Atchison County59.9Sedgwick County: 59.5 %Sedgwick County59.5Finney County: 59.4 %Finney County59.4Pawnee County: 59.2 %Pawnee County59.2Seward County: 58.8 %Seward County58.8Ellsworth County: 58.6 %Ellsworth County58.6Thomas County: 58.3 %Thomas County58.3Franklin County: 58.2 %Franklin County58.2Saline County: 58.1 %Saline County58.1Doniphan County: 58.1 %Doniphan County58.1Butler County: 58 %Butler County58Ford County: 57.8 %Ford County57.8Miami County: 57.5 %Miami County57.5Shawnee County: 57.5 %Shawnee County57.5Hamilton County: 57.5 %Hamilton County57.5Cowley County: 57.3 %Cowley County57.3Reno County: 57.2 %Reno County57.2McPherson County: 57 %McPherson County57Rice County: 56.6 %Rice County56.6Jefferson County: 56.6 %Jefferson County56.6Cherokee County: 56.6 %Cherokee County56.6Allen County: 56.5 %Allen County56.5Chase County: 56.5 %Chase County56.5Grant County: 56.1 %Grant County56.1Ottawa County: 55.9 %Ottawa County55.9Stevens County: 55.8 %Stevens County55.8Sherman County: 55.8 %Sherman County55.8Haskell County: 55.7 %Haskell County55.7Montgomery County: 55.6 %Montgomery County55.6Barton County: 55.6 %Barton County55.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Riley County72.7+0.1 pts
2Douglas County67.1-0.4 pts
3Ellis County62.7-0.5 pts
4Geary County61.1-0.4 pts
5Lyon County61.1-0.6 pts
6Norton County61-0.4 pts
7Crawford County60.9-0.4 pts
8Leavenworth County60.5-0.5 pts
9Johnson County60.1-0.2 pts
10Wyandotte County60-0.4 pts
11Atchison County59.9-0.2 pts
12Sedgwick County59.5-0.4 pts
13Finney County59.4-0.2 pts
14Pawnee County59.2-0.2 pts
15Seward County58.8-0.2 pts
16Ellsworth County58.6+0.1 pts
17Thomas County58.3-0.8 pts
18Franklin County58.2-0.6 pts
19Saline County58.1-0.3 pts
20Doniphan County58.1-0.7 pts
21Butler County58-0.4 pts
22Ford County57.8-0.1 pts
23Miami County57.5-0.6 pts
24Shawnee County57.5-0.4 pts
25Hamilton County57.5+1.2 pts
26Cowley County57.3-0.4 pts
27Reno County57.2-0.3 pts
28McPherson County57-0.4 pts
29Rice County56.6-0.5 pts
30Jefferson County56.6-0.8 pts
31Cherokee County56.6-0.6 pts
32Allen County56.5-0.8 pts
33Chase County56.5-0.9 pts
34Grant County56.1-0.1 pts
35Ottawa County55.9-0.6 pts
36Stevens County55.8+0.7 pts
37Sherman County55.8-0.6 pts
38Haskell County55.7+0.8 pts
39Montgomery County55.6-0.4 pts
40Barton County55.6-0.7 pts
41Dickinson County55.6-0.2 pts
42Kearny County55.5-0.2 pts
43Neosho County55.5-0.4 pts
44Pottawatomie County55.4-0.3 pts
45Linn County55.4+0.2 pts
46Osage County55.4-0.5 pts
47Sumner County55.3-0.3 pts
48Stanton County55.3-0.2 pts
49Morton County55.2-0 pts
50Kiowa County55.2-1.2 pts
51Labette County55.2-0.8 pts
52Cloud County55.1+0.2 pts
53Wabaunsee County55-0 pts
54Harvey County55-0.6 pts
55Kingman County55-0.1 pts
56Woodson County55+0.2 pts
57Meade County55-0.4 pts
58Edwards County54.9+0.4 pts
59Jackson County54.9-0.4 pts
60Pratt County54.8-0.5 pts
61Marion County54.8-0.2 pts
62Coffey County54.7-0 pts
63Scott County54.5+0.6 pts
64Bourbon County54.5-0.5 pts
65Clark County54.4-0.1 pts
66Rooks County54.4-1.1 pts
67Wilson County54.4-0.4 pts
68Logan County54.2-1 pts
69Greeley County54.2-0.8 pts
70Wichita County54-0.3 pts
71Gray County54-0.4 pts
72Brown County53.9-0.8 pts
73Stafford County53.8-0.6 pts
74Trego County53.7-0.3 pts
75Russell County53.7-1.1 pts
76Morris County53.5-1 pts
77Marshall County53.4-0.6 pts
78Hodgeman County53.4+1.6 pts
79Anderson County53.3+0.2 pts
80Rush County53.3-0.2 pts
81Clay County53-0.8 pts
82Chautauqua County52.9-0.3 pts
83Nemaha County52.9-0.5 pts
84Washington County52.6-1 pts
85Lane County52.4-1.9 pts
86Greenwood County52.3-0.8 pts
87Sheridan County52.2-0.6 pts
88Osborne County52.1-0.2 pts
89Barber County52.1-1.7 pts
90Ness County51.9-1.2 pts
91Phillips County51.8-0.9 pts
92Republic County51.7-0.7 pts
93Harper County51.7-0.8 pts
94Mitchell County51.5-0.5 pts
95Gove County51.4+0.4 pts
96Graham County51.4+0.3 pts
97Lincoln County51.4-0.2 pts
98Decatur County51.3-1.3 pts
99Cheyenne County51.3-0.5 pts
100Wallace County51.2-2.3 pts
101Smith County51-0.5 pts
102Jewell County50.6-0.9 pts
103Comanche County50.6-1.4 pts
104Elk County50.2-0.1 pts
105Rawlins County49.8-0.6 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 Kansas by population aged 18 to 64, 2020) [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 Kansas by population aged 18 to 64, 2020. 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/kansas-counties?period=2020. 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 Kansas by population aged 18 to 64, 2020. 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/kansas-counties?period=2020.

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 Kansas by population aged 18 to 64, 2020 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/kansas-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_kansas_by_2020,
  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 Kansas by population aged 18 to 64, 2020}},
  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/kansas-counties?period=2020. 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 Kansas by population aged 18 to 64, 2020
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/kansas-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/kansas-counties?period=2020.
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?

Riley County, with 72.7% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Rawlins County, with 49.8% in 2020.

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 Kansas: more rankings