Kansas Voting-age Population By County in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of Kansas was 2.22M which was 75.64% of the total Kansas population. Among all Kansas counties, Johnson had the highest voting-age population (458.32K), followed by Sedgwick (386.73K), and Shawnee (136.63K).

On the other hand, the counties with the least voting-age population were: Greeley (894), Wallace (1.15K), and Lane (1.18K).

The chart and table below shows the voting-age population of each county and the percentage of each county's population that are of voting-age.

You can see similar information for other states and by state for the United States.

Kansas Voting-age Population By County in 2021
Kansas Voting-age Population By County in 2021
Items per page:
0 of 0
County Voting-age Population % of County Population
Allen 9751 77.65
Anderson 5799 74.35
Atchison 12535 76.52
Barber 3166 75.78
Barton 19560 76.08
Bourbon 10701 74.26
Brown 7059 74.06
Butler 50186 74.46
Chase 2039 78.94
Chautauqua 2618 77.14
Cherokee 14961 76.70
Cheyenne 2088 78.88
Clark 1513 75.88
Clay 6153 76.10
Cloud 6828 75.56
Coffey 6539 78.21
Comanche 1430 79.05
Cowley 26483 76.17
Crawford 30318 77.70
Decatur 2197 78.69
Dickinson 14244 76.70
Doniphan 6063 80.32
Douglas 97088 81.80
Edwards 2219 76.23
Elk 1891 76.68
Ellis 22672 78.47
Ellsworth 5192 81.09
Finney 26724 69.71
Ford 23982 69.66
Franklin 19732 76.03
Geary 25067 68.65
Gove 2061 74.30
Graham 1935 79.17
Grant 5155 69.38
Gray 4011 70.12
Greeley 894 71.12
Greenwood 4734 78.26
Hamilton 1877 72.98
Harper 4123 74.62
Harvey 25725 75.65
Haskell 2727 71.71
Hodgeman 1448 78.23
Jackson 9931 74.74
Jefferson 14195 77.18
Jewell 2308 78.85
Johnson 458322 75.74
Kearny 2827 70.34
Kingman 5851 78.07
Kiowa 1853 75.42
Labette 15293 75.63
Lane 1178 78.32
Leavenworth 62218 76.25
Lincoln 2255 76.39
Linn 7467 77.24
Logan 2091 75.30
Lyon 25069 77.57
McPherson 23315 77.56
Marion 9346 78.69
Marshall 7550 75.54
Meade 3004 73.47
Miami 25693 75.64
Mitchell 4548 77.29
Montgomery 24129 76.17
Morris 4253 79.10
Morton 2042 74.42
Nemaha 7369 72.27
Neosho 11963 75.12
Ness 2155 79.32
Norton 4367 80.03
Osage 12111 76.60
Osborne 2773 78.96
Ottawa 4447 76.96
Pawnee 5418 85.24
Phillips 3909 77.84
Pottawatomie 17622 70.26
Pratt 6924 74.72
Rawlins 1983 78.35
Reno 48098 77.49
Republic 3637 77.27
Rice 7276 76.88
Riley 60603 83.47
Rooks 3843 77.25
Rush 2239 77.66
Russell 5241 77.68
Saline 41652 76.60
Scott 3699 71.64
Sedgwick 386727 74.30
Seward 15238 68.57
Shawnee 136627 76.31
Sheridan 1834 74.58
Sherman 4524 75.84
Smith 2860 79.71
Stafford 3102 75.55
Stanton 1437 68.82
Stevens 3774 70.94
Sumner 17061 75.48
Thomas 6008 76.03
Trego 2282 80.78
Wabaunsee 5249 76.28
Wallace 1152 75.34
Washington 4278 77.35
Wichita 1648 76.65
Wilson 6607 75.83
Woodson 2546 80.52
Wyandotte 121439 72.14