Kansas 2020 Census Total Voting-age Population (18yrs and over) By County
According to the data from the US 2020 decennial Census, as at April 2020, the total Voting-age population (18 years and over) of Kansas was 2,229,316, which was 75.88% of the total Kansas population.
Johnson County had the highest voting-age population (461,998), followed by Sedgwick County (392,877), and then Shawnee County (137,135). On the other hand, the 3 counties with low voting-age population were: Greeley County (956), Wallace County (1,124), and Lane County (1,237).
You can also see this information for other states and also for the US by state.
Hover over or click on the counties to see the number and percentage of Kansas population that lives in each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.
You can also see the voting-age population by county for the different racial groups as well as the different ethnicities in Kansas.
| County | Voting-age Population | % of Kansas Pop. |
|---|---|---|
| Allen | 9789 | 0.44 |
| Anderson | 5831 | 0.26 |
| Atchison | 12749 | 0.57 |
| Barber | 3292 | 0.15 |
| Barton | 19337 | 0.87 |
| Bourbon | 10704 | 0.48 |
| Brown | 7159 | 0.32 |
| Butler | 50070 | 2.25 |
| Chase | 2045 | 0.09 |
| Chautauqua | 2641 | 0.12 |
| Cherokee | 14861 | 0.67 |
| Cheyenne | 2040 | 0.09 |
| Clark | 1517 | 0.07 |
| Clay | 6260 | 0.28 |
| Cloud | 6995 | 0.31 |
| Coffey | 6424 | 0.29 |
| Comanche | 1293 | 0.06 |
| Cowley | 26392 | 1.18 |
| Crawford | 30158 | 1.35 |
| Decatur | 2200 | 0.10 |
| Dickinson | 14099 | 0.63 |
| Doniphan | 5856 | 0.26 |
| Douglas | 96316 | 4.32 |
| Edwards | 2262 | 0.10 |
| Elk | 1923 | 0.09 |
| Ellis | 22952 | 1.03 |
| Ellsworth | 5177 | 0.23 |
| Finney | 27176 | 1.22 |
| Ford | 23674 | 1.06 |
| Franklin | 19927 | 0.89 |
| Geary | 25963 | 1.17 |
| Gove | 2018 | 0.09 |
| Graham | 1908 | 0.09 |
| Grant | 5156 | 0.23 |
| Gray | 4050 | 0.18 |
| Greeley | 956 | 0.04 |
| Greenwood | 4729 | 0.21 |
| Hamilton | 1792 | 0.08 |
| Harper | 4167 | 0.19 |
| Harvey | 25911 | 1.16 |
| Haskell | 2640 | 0.12 |
| Hodgeman | 1295 | 0.06 |
| Jackson | 9843 | 0.44 |
| Jefferson | 14077 | 0.63 |
| Jewell | 2307 | 0.10 |
| Johnson | 461998 | 20.72 |
| Kearny | 2833 | 0.13 |
| Kingman | 5794 | 0.26 |
| Kiowa | 1898 | 0.09 |
| Labette | 15103 | 0.68 |
| Lane | 1237 | 0.06 |
| Leavenworth | 62172 | 2.79 |
| Lincoln | 2261 | 0.10 |
| Linn | 7418 | 0.33 |
| Logan | 2067 | 0.09 |
| Lyon | 25093 | 1.13 |
| McPherson | 23584 | 1.06 |
| Marion | 9237 | 0.41 |
| Marshall | 7639 | 0.34 |
| Meade | 2985 | 0.13 |
| Miami | 25740 | 1.16 |
| Mitchell | 4460 | 0.20 |
| Montgomery | 24064 | 1.08 |
| Morris | 4230 | 0.19 |
| Morton | 2043 | 0.09 |
| Nemaha | 7593 | 0.34 |
| Neosho | 11978 | 0.54 |
| Ness | 2150 | 0.10 |
| Norton | 4400 | 0.20 |
| Osage | 12113 | 0.54 |
| Osborne | 2753 | 0.12 |
| Ottawa | 4411 | 0.20 |
| Pawnee | 4974 | 0.22 |
| Phillips | 3870 | 0.17 |
| Pottawatomie | 17895 | 0.80 |
| Pratt | 6982 | 0.31 |
| Rawlins | 1983 | 0.09 |
| Reno | 48143 | 2.16 |
| Republic | 3679 | 0.17 |
| Rice | 7242 | 0.33 |
| Riley | 59685 | 2.68 |
| Rooks | 3833 | 0.17 |
| Rush | 2371 | 0.11 |
| Russell | 5178 | 0.23 |
| Saline | 41737 | 1.87 |
| Scott | 3802 | 0.17 |
| Sedgwick | 392877 | 17.62 |
| Seward | 15257 | 0.68 |
| Shawnee | 137135 | 6.15 |
| Sheridan | 1839 | 0.08 |
| Sherman | 4482 | 0.20 |
| Smith | 2860 | 0.13 |
| Stafford | 3114 | 0.14 |
| Stanton | 1486 | 0.07 |
| Stevens | 3757 | 0.17 |
| Sumner | 16920 | 0.76 |
| Thomas | 6052 | 0.27 |
| Trego | 2225 | 0.10 |
| Wabaunsee | 5196 | 0.23 |
| Wallace | 1124 | 0.05 |
| Washington | 4230 | 0.19 |
| Wichita | 1574 | 0.07 |
| Wilson | 6605 | 0.30 |
| Woodson | 2452 | 0.11 |
| Wyandotte | 123572 | 5.54 |