Data / Rankings / Median age / Counties in Kansas

Counties in Kansas by median age

Jewell County had the highest median age of 105 counties in 2021, at 52.3 years. Riley County had the lowest, at 25.5 years. The median was 41.5 years and the figure for Kansas was 37 years. Source: the U.S. Census Bureau.

Highest52.3Jewell County
Lowest25.5Riley County
Median41.5105 counties
Kansas37History

Top 40 counties, 2021

CSVChart (SVG)

Jewell CountyJewell County: 52.3 years52.3Elk CountyElk County: 50.3 years50.3Decatur CountyDecatur County: 50.2 years50.2Woodson CountyWoodson County: 50 years50Smith CountySmith County: 49.9 years49.9Ness CountyNess County: 49 years49Clark CountyClark County: 48.9 years48.9Comanche CountyComanche County: 48.8 years48.8Republic CountyRepublic County: 48.6 years48.6Greenwood CountyGreenwood County: 48.2 years48.2Trego CountyTrego County: 47.6 years47.6Hodgeman CountyHodgeman County: 47.3 years47.3Graham CountyGraham County: 47.2 years47.2Pawnee CountyPawnee County: 46.8 years46.8Rawlins CountyRawlins County: 46.8 years46.8Lane CountyLane County: 46.6 years46.6Morris CountyMorris County: 46.6 years46.6Chautauqua CountyChautauqua County: 46.1 years46.1Osborne CountyOsborne County: 46.1 years46.1Rush CountyRush County: 46.1 years46.1Cheyenne CountyCheyenne County: 45.6 years45.6Russell CountyRussell County: 45.3 years45.3Washington CountyWashington County: 45.1 years45.1Rooks CountyRooks County: 45 years45Kingman CountyKingman County: 44.8 years44.8Lincoln CountyLincoln County: 44.8 years44.8Linn CountyLinn County: 44.8 years44.8Chase CountyChase County: 44.3 years44.3Coffey CountyCoffey County: 44.2 years44.2Marion CountyMarion County: 44.1 years44.1Phillips CountyPhillips County: 43.9 years43.9Jefferson CountyJefferson County: 43.7 years43.7Norton CountyNorton County: 43.4 years43.4Osage CountyOsage County: 43.4 years43.4Stafford CountyStafford County: 43.2 years43.2Barber CountyBarber County: 43.1 years43.1Cherokee CountyCherokee County: 43.1 years43.1Wabaunsee CountyWabaunsee County: 43.1 years43.1Sheridan CountySheridan County: 43 years43Clay CountyClay County: 42.9 years42.9
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
years
1Jewell County52.3
2Elk County50.3
3Decatur County50.2
4Woodson County50
5Smith County49.9
6Ness County49
7Clark County48.9
8Comanche County48.8
9Republic County48.6
10Greenwood County48.2
11Trego County47.6
12Hodgeman County47.3
13Graham County47.2
14Pawnee County46.8
14Rawlins County46.8
16Lane County46.6
16Morris County46.6
18Chautauqua County46.1
18Osborne County46.1
18Rush County46.1
21Cheyenne County45.6
22Russell County45.3
23Washington County45.1
24Rooks County45
25Kingman County44.8
25Lincoln County44.8
25Linn County44.8
28Chase County44.3
29Coffey County44.2
30Marion County44.1
31Phillips County43.9
32Jefferson County43.7
33Norton County43.4
33Osage County43.4
35Stafford County43.2
36Barber County43.1
36Cherokee County43.1
36Wabaunsee County43.1
39Sheridan County43
40Clay County42.9
41Wallace County42.8
42Edwards County42.6
42Marshall County42.6
42Mitchell County42.6
45Gove County42.5
45Miami County42.5
47Ottawa County42.4
48Ellsworth County42.3
48Wilson County42.3
50Sumner County42.1
51Doniphan County41.8
52Harper County41.7
53Brown County41.5
53Dickinson County41.5
55Kiowa County41.3
56Allen County41.2
57Jackson County40.9
58Montgomery County40.8
59Labette County40.7
59Reno County40.7
61Logan County40.3
61McPherson County40.3
63Nemaha County40.2
64Anderson County39.9
64Neosho County39.9
66Franklin County39.6
67Saline County39.5
68Shawnee County39.4
69Harvey County39.3
70Greeley County39.2
70Rice County39.2
70Wichita County39.2
73Sherman County39.1
74Bourbon County38.9
75Barton County38.8
76Pratt County38.7
77Cloud County38.6
78Butler County38.5
79Cowley County38.1
79Leavenworth County38.1
81Johnson County37.9
82Meade County37
83Scott County36.9
84Morton County36.8
85Atchison County36.4
85Hamilton County36.4
85Haskell County36.4
88Thomas County35.8
89Sedgwick County35.7
89Stevens County35.7
91Pottawatomie County35.5
92Gray County35.4
93Stanton County35.3
94Kearny County34.7
95Wyandotte County34.1
96Ellis County33.7
97Crawford County33
97Grant County33
97Lyon County33
100Ford County32.6
101Finney County31.8
102Douglas County30.7
103Seward County30.2
104Geary County26.5
105Riley County25.5

Other periods

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

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. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Jewell County, with 52.3 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Riley County, with 25.5 years in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Kansas: more rankings