Ranking of Kansas Counties By Population in 2021
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2021, the Population for Kansas was 2.94M. Among all Kansas counties, Johnson County had the highest population (614.96K), followed by Sedgwick County (524.47K), and Shawnee County (178.42K).
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), 2021 Census.
See this for other years:
Ranking of Kansas Counties By Population in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Johnson County | 614962 |
| 2 | Sedgwick County | 524470 |
| 3 | Shawnee County | 178424 |
| 4 | Wyandotte County | 167279 |
| 5 | Douglas County | 119503 |
| 6 | Leavenworth County | 82395 |
| 7 | Riley County | 71870 |
| 8 | Butler County | 67984 |
| 9 | Reno County | 61523 |
| 10 | Saline County | 53829 |
| 11 | Crawford County | 39034 |
| 12 | Finney County | 38091 |
| 13 | Geary County | 36131 |
| 14 | Miami County | 34641 |
| 15 | Cowley County | 34631 |
| 16 | Ford County | 34190 |
| 17 | Harvey County | 33799 |
| 18 | Lyon County | 32034 |
| 19 | Montgomery County | 31180 |
| 20 | McPherson County | 30167 |
| 21 | Ellis County | 28856 |
| 22 | Franklin County | 26024 |
| 23 | Pottawatomie County | 25884 |
| 24 | Barton County | 25267 |
| 25 | Sumner County | 22327 |
| 26 | Seward County | 21764 |
| 27 | Labette County | 19908 |
| 28 | Cherokee County | 19182 |
| 29 | Dickinson County | 18463 |
| 30 | Jefferson County | 18435 |
| 31 | Atchison County | 16235 |
| 32 | Neosho County | 15791 |
| 33 | Osage County | 15754 |
| 34 | Bourbon County | 14327 |
| 35 | Jackson County | 13264 |
| 36 | Allen County | 12506 |
| 37 | Marion County | 11744 |
| 38 | Nemaha County | 10228 |
| 39 | Marshall County | 10023 |
| 40 | Linn County | 9745 |
| 41 | Brown County | 9456 |
| 42 | Rice County | 9388 |
| 43 | Pratt County | 9168 |
| 44 | Cloud County | 8965 |
| 45 | Wilson County | 8525 |
| 46 | Coffey County | 8343 |
| 47 | Clay County | 8099 |
| 48 | Thomas County | 7950 |
| 49 | Anderson County | 7811 |
| 50 | Doniphan County | 7455 |
| 51 | Grant County | 7335 |
| 52 | Kingman County | 7288 |
| 53 | Wabaunsee County | 6970 |
| 54 | Russell County | 6694 |
| 55 | Ellsworth County | 6328 |
| 56 | Pawnee County | 6240 |
| 57 | Sherman County | 5939 |
| 58 | Greenwood County | 5921 |
| 59 | Ottawa County | 5835 |
| 60 | Mitchell County | 5750 |
| 61 | Gray County | 5661 |
| 62 | Washington County | 5521 |
| 63 | Morris County | 5388 |
| 64 | Norton County | 5370 |
| 65 | Harper County | 5352 |
| 66 | Stevens County | 5305 |
| 67 | Scott County | 5115 |
| 68 | Rooks County | 4859 |
| 69 | Phillips County | 4818 |
| 70 | Republic County | 4699 |
| 71 | Barber County | 4105 |
| 72 | Stafford County | 4012 |
| 73 | Meade County | 3998 |
| 74 | Kearny County | 3895 |
| 75 | Haskell County | 3653 |
| 76 | Smith County | 3566 |
| 77 | Osborne County | 3487 |
| 78 | Chautauqua County | 3384 |
| 79 | Woodson County | 3086 |
| 80 | Jewell County | 2947 |
| 81 | Rush County | 2935 |
| 82 | Lincoln County | 2907 |
| 83 | Edwards County | 2802 |
| 84 | Trego County | 2791 |
| 85 | Decatur County | 2756 |
| 86 | Gove County | 2750 |
| 87 | Logan County | 2713 |
| 88 | Morton County | 2674 |
| 89 | Ness County | 2658 |
| 90 | Cheyenne County | 2635 |
| 91 | Chase County | 2608 |
| 92 | Rawlins County | 2561 |
| 93 | Hamilton County | 2478 |
| 94 | Sheridan County | 2451 |
| 95 | Elk County | 2431 |
| 96 | Kiowa County | 2407 |
| 97 | Graham County | 2403 |
| 98 | Wichita County | 2079 |
| 99 | Stanton County | 2046 |
| 100 | Clark County | 1957 |
| 101 | Hodgeman County | 1724 |
| 102 | Comanche County | 1667 |
| 103 | Lane County | 1564 |
| 104 | Wallace County | 1513 |
| 105 | Greeley County | 1283 |
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