Ranking of Kansas Counties By Population in 2020
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2020, the Population for Kansas was 2.94M. Among all Kansas counties, Johnson County had the highest population (611.16K), followed by Sedgwick County (524.84K), and Shawnee County (178.71K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Kansas counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
Related Topics: Kansas Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2020 Census.
See this for other years:
Ranking of Kansas Counties By Population in 2020
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| Rank | County | Population |
|---|---|---|
| 1 | Johnson County | 611161 |
| 2 | Sedgwick County | 524837 |
| 3 | Shawnee County | 178711 |
| 4 | Wyandotte County | 168920 |
| 5 | Douglas County | 118787 |
| 6 | Leavenworth County | 81961 |
| 7 | Riley County | 72011 |
| 8 | Butler County | 67389 |
| 9 | Reno County | 61894 |
| 10 | Saline County | 54248 |
| 11 | Crawford County | 38951 |
| 12 | Finney County | 38310 |
| 13 | Geary County | 36766 |
| 14 | Cowley County | 34535 |
| 15 | Miami County | 34219 |
| 16 | Ford County | 34218 |
| 17 | Harvey County | 33996 |
| 18 | Lyon County | 32113 |
| 19 | Montgomery County | 31400 |
| 20 | McPherson County | 30184 |
| 21 | Ellis County | 28951 |
| 22 | Franklin County | 26015 |
| 23 | Barton County | 25426 |
| 24 | Pottawatomie County | 25421 |
| 25 | Sumner County | 22323 |
| 26 | Seward County | 21857 |
| 27 | Labette County | 20160 |
| 28 | Cherokee County | 19301 |
| 29 | Dickinson County | 18367 |
| 30 | Jefferson County | 18325 |
| 31 | Atchison County | 16325 |
| 32 | Neosho County | 15905 |
| 33 | Osage County | 15740 |
| 34 | Bourbon County | 14333 |
| 35 | Jackson County | 13238 |
| 36 | Allen County | 12537 |
| 37 | Marion County | 11787 |
| 38 | Nemaha County | 10263 |
| 39 | Marshall County | 10022 |
| 40 | Linn County | 9591 |
| 41 | Brown County | 9479 |
| 42 | Rice County | 9385 |
| 43 | Pratt County | 9139 |
| 44 | Cloud County | 9018 |
| 45 | Wilson County | 8586 |
| 46 | Coffey County | 8362 |
| 47 | Clay County | 8127 |
| 48 | Thomas County | 7933 |
| 49 | Anderson County | 7841 |
| 50 | Doniphan County | 7468 |
| 51 | Kingman County | 7420 |
| 52 | Grant County | 7326 |
| 53 | Wabaunsee County | 6890 |
| 54 | Russell County | 6673 |
| 55 | Ellsworth County | 6371 |
| 56 | Pawnee County | 6248 |
| 57 | Greenwood County | 5975 |
| 58 | Sherman County | 5902 |
| 59 | Mitchell County | 5778 |
| 60 | Ottawa County | 5731 |
| 61 | Gray County | 5640 |
| 62 | Washington County | 5526 |
| 63 | Harper County | 5467 |
| 64 | Norton County | 5452 |
| 65 | Morris County | 5370 |
| 66 | Stevens County | 5246 |
| 67 | Scott County | 5133 |
| 68 | Phillips County | 4959 |
| 69 | Rooks County | 4886 |
| 70 | Republic County | 4672 |
| 71 | Barber County | 4203 |
| 72 | Meade County | 4062 |
| 73 | Stafford County | 4052 |
| 74 | Kearny County | 3960 |
| 75 | Haskell County | 3760 |
| 76 | Smith County | 3559 |
| 77 | Osborne County | 3491 |
| 78 | Chautauqua County | 3380 |
| 79 | Woodson County | 3099 |
| 80 | Lincoln County | 2946 |
| 81 | Rush County | 2944 |
| 82 | Jewell County | 2929 |
| 83 | Edwards County | 2884 |
| 84 | Trego County | 2804 |
| 85 | Decatur County | 2747 |
| 86 | Logan County | 2743 |
| 87 | Gove County | 2716 |
| 88 | Morton County | 2703 |
| 89 | Ness County | 2679 |
| 90 | Cheyenne County | 2612 |
| 91 | Chase County | 2575 |
| 92 | Rawlins County | 2574 |
| 93 | Hamilton County | 2487 |
| 94 | Elk County | 2472 |
| 95 | Kiowa County | 2453 |
| 96 | Sheridan County | 2443 |
| 97 | Graham County | 2406 |
| 98 | Wichita County | 2149 |
| 99 | Stanton County | 2085 |
| 100 | Clark County | 1977 |
| 101 | Hodgeman County | 1738 |
| 102 | Comanche County | 1682 |
| 103 | Lane County | 1570 |
| 104 | Wallace County | 1512 |
| 105 | Greeley County | 1275 |