Data / Rankings / Population aged 65 and over / Counties in Kansas

Counties in Kansas by share of population aged 65 and over

Smith County had the highest share of population aged 65 and over of 105 counties in 2020, at 29.4%. Geary County had the lowest, at 9.3%. The median was 21.2% and the figure for Kansas was 16.8%. Source: the U.S. Census Bureau.

Highest29.4Smith County
Lowest9.3Geary County
Median21.2105 counties
Kansas16.8History

Top 40 counties, 2020

CSVChart (SVG)

Smith CountySmith County: 29.4 %29.4Jewell CountyJewell County: 28.8 %28.8Elk CountyElk County: 28.2 %28.2Graham CountyGraham County: 28.2 %28.2Decatur CountyDecatur County: 28.1 %28.1Rawlins CountyRawlins County: 27.9 %27.9Ness CountyNess County: 27.5 %27.5Republic CountyRepublic County: 27.3 %27.3Rush CountyRush County: 27.2 %27.2Osborne CountyOsborne County: 26.8 %26.8Cheyenne CountyCheyenne County: 26.6 %26.6Greenwood CountyGreenwood County: 26.4 %26.4Comanche CountyComanche County: 26.2 %26.2Lane CountyLane County: 26.1 %26.1Trego CountyTrego County: 26 %26Lincoln CountyLincoln County: 25.8 %25.8Phillips CountyPhillips County: 25.6 %25.6Mitchell CountyMitchell County: 25.5 %25.5Barber CountyBarber County: 25.4 %25.4Chautauqua CountyChautauqua County: 25 %25Morris CountyMorris County: 24.7 %24.7Woodson CountyWoodson County: 24.2 %24.2Clay CountyClay County: 24 %24Chase CountyChase County: 23.8 %23.8Marion CountyMarion County: 23.8 %23.8Harper CountyHarper County: 23.7 %23.7Washington CountyWashington County: 23.6 %23.6Russell CountyRussell County: 23.5 %23.5Rooks CountyRooks County: 23.3 %23.3Sheridan CountySheridan County: 23.2 %23.2Wallace CountyWallace County: 23.1 %23.1Ellsworth CountyEllsworth County: 23.1 %23.1Kingman CountyKingman County: 23 %23Gove CountyGove County: 23 %23Clark CountyClark County: 23 %23Marshall CountyMarshall County: 22.9 %22.9Edwards CountyEdwards County: 22.8 %22.8Coffey CountyCoffey County: 22.7 %22.7Hodgeman CountyHodgeman County: 22.6 %22.6Stafford CountyStafford County: 22.5 %22.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2020 (%)
1Smith County29.4
2Jewell County28.8
3Elk County28.2
4Graham County28.2
5Decatur County28.1
6Rawlins County27.9
7Ness County27.5
8Republic County27.3
9Rush County27.2
10Osborne County26.8
11Cheyenne County26.6
12Greenwood County26.4
13Comanche County26.2
14Lane County26.1
15Trego County26
16Lincoln County25.8
17Phillips County25.6
18Mitchell County25.5
19Barber County25.4
20Chautauqua County25
21Morris County24.7
22Woodson County24.2
23Clay County24
24Chase County23.8
25Marion County23.8
26Harper County23.7
27Washington County23.6
28Russell County23.5
29Rooks County23.3
30Sheridan County23.2
31Wallace County23.1
32Ellsworth County23.1
33Kingman County23
34Gove County23
35Clark County23
36Marshall County22.9
37Edwards County22.8
38Coffey County22.7
39Hodgeman County22.6
40Stafford County22.5
41Cloud County22.4
42Wilson County22.2
43Kiowa County22.1
44Linn County21.9
45Osage County21.4
46Allen County21.4
47Dickinson County21.4
48Wabaunsee County21.3
49Pawnee County21.3
50Greeley County21.3
51Nemaha County21.2
51Ottawa County21.2
53Brown County21.2
54Pratt County21.1
55McPherson County21.1
56Harvey County21
57Anderson County21
58Morton County20.9
59Logan County20.8
60Montgomery County20.8
61Reno County20.6
62Sumner County20.4
63Sherman County20.3
64Barton County20.3
65Wichita County20.2
66Rice County20.1
67Jefferson County20
68Cherokee County20
69Doniphan County19.9
70Bourbon County19.9
71Neosho County19.8
72Scott County19.8
73Labette County19.6
74Norton County19.6
75Jackson County19.5
76Shawnee County19.1
77Cowley County19
78Saline County18.8
79Meade County18.7
80Franklin County18.2
81Thomas County18.1
82Atchison County18
83Gray County18
84Miami County17.8
85Stanton County17
86Lyon County16.5
87Ellis County16.5
88Butler County16.4
89Crawford County16.4
90Stevens County16
91Kearny County15.9
92Johnson County15.7
93Leavenworth County15.5
94Pottawatomie County15.4
95Sedgwick County15.3
96Haskell County14.8
97Grant County14.1
98Douglas County14
99Hamilton County13.9
100Wyandotte County12.8
101Ford County11.4
102Finney County11.1
103Seward County10.6
104Riley County10.3
105Geary County9.3

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

Use this data in your AI agent

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Rank Counties in Kansas by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"Kansas","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=Kansas&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Smith County, with 29.4% in 2020, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Geary County, with 9.3% 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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in Kansas: more rankings