Ranking of Kansas Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, among all the counties in Kansas, Johnson County had the highest voting-age population (18 years and over) (462.00K), followed by Sedgwick County (392.88K), and Shawnee County (137.14K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Kansas counties based on voting-age population.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Kansas Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Kansas Counties By Total Voting-age Population from Census 2020
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| Rank | County | Voting-age Population |
|---|---|---|
| 1 | Johnson County | 461998 |
| 2 | Sedgwick County | 392877 |
| 3 | Shawnee County | 137135 |
| 4 | Wyandotte County | 123572 |
| 5 | Douglas County | 96316 |
| 6 | Leavenworth County | 62172 |
| 7 | Riley County | 59685 |
| 8 | Butler County | 50070 |
| 9 | Reno County | 48143 |
| 10 | Saline County | 41737 |
| 11 | Crawford County | 30158 |
| 12 | Finney County | 27176 |
| 13 | Cowley County | 26392 |
| 14 | Geary County | 25963 |
| 15 | Harvey County | 25911 |
| 16 | Miami County | 25740 |
| 17 | Lyon County | 25093 |
| 18 | Montgomery County | 24064 |
| 19 | Ford County | 23674 |
| 20 | McPherson County | 23584 |
| 21 | Ellis County | 22952 |
| 22 | Franklin County | 19927 |
| 23 | Barton County | 19337 |
| 24 | Pottawatomie County | 17895 |
| 25 | Sumner County | 16920 |
| 26 | Seward County | 15257 |
| 27 | Labette County | 15103 |
| 28 | Cherokee County | 14861 |
| 29 | Dickinson County | 14099 |
| 30 | Jefferson County | 14077 |
| 31 | Atchison County | 12749 |
| 32 | Osage County | 12113 |
| 33 | Neosho County | 11978 |
| 34 | Bourbon County | 10704 |
| 35 | Jackson County | 9843 |
| 36 | Allen County | 9789 |
| 37 | Marion County | 9237 |
| 38 | Marshall County | 7639 |
| 39 | Nemaha County | 7593 |
| 40 | Linn County | 7418 |
| 41 | Rice County | 7242 |
| 42 | Brown County | 7159 |
| 43 | Cloud County | 6995 |
| 44 | Pratt County | 6982 |
| 45 | Wilson County | 6605 |
| 46 | Coffey County | 6424 |
| 47 | Clay County | 6260 |
| 48 | Thomas County | 6052 |
| 49 | Doniphan County | 5856 |
| 50 | Anderson County | 5831 |
| 51 | Kingman County | 5794 |
| 52 | Wabaunsee County | 5196 |
| 53 | Russell County | 5178 |
| 54 | Ellsworth County | 5177 |
| 55 | Grant County | 5156 |
| 56 | Pawnee County | 4974 |
| 57 | Greenwood County | 4729 |
| 58 | Sherman County | 4482 |
| 59 | Mitchell County | 4460 |
| 60 | Ottawa County | 4411 |
| 61 | Norton County | 4400 |
| 62 | Morris County | 4230 |
| 62 | Washington County | 4230 |
| 63 | Harper County | 4167 |
| 64 | Gray County | 4050 |
| 65 | Phillips County | 3870 |
| 66 | Rooks County | 3833 |
| 67 | Scott County | 3802 |
| 68 | Stevens County | 3757 |
| 69 | Republic County | 3679 |
| 70 | Barber County | 3292 |
| 71 | Stafford County | 3114 |
| 72 | Meade County | 2985 |
| 73 | Smith County | 2860 |
| 74 | Kearny County | 2833 |
| 75 | Osborne County | 2753 |
| 76 | Chautauqua County | 2641 |
| 77 | Haskell County | 2640 |
| 78 | Woodson County | 2452 |
| 79 | Rush County | 2371 |
| 80 | Jewell County | 2307 |
| 81 | Edwards County | 2262 |
| 82 | Lincoln County | 2261 |
| 83 | Trego County | 2225 |
| 84 | Decatur County | 2200 |
| 85 | Ness County | 2150 |
| 86 | Logan County | 2067 |
| 87 | Chase County | 2045 |
| 88 | Morton County | 2043 |
| 89 | Cheyenne County | 2040 |
| 90 | Gove County | 2018 |
| 91 | Rawlins County | 1983 |
| 92 | Elk County | 1923 |
| 93 | Graham County | 1908 |
| 94 | Kiowa County | 1898 |
| 95 | Sheridan County | 1839 |
| 96 | Hamilton County | 1792 |
| 97 | Wichita County | 1574 |
| 98 | Clark County | 1517 |
| 99 | Stanton County | 1486 |
| 100 | Hodgeman County | 1295 |
| 101 | Comanche County | 1293 |
| 102 | Lane County | 1237 |
| 103 | Wallace County | 1124 |
| 104 | Greeley County | 956 |