Kansas Counties by Population (2026)
2026 Pop.
50K
100K
150K
200K
250K
300K
350K
400K
450K
500K
550K
600K
Top 5 Most Populous Counties
642,980
542,480
178,992
171,324
120,901
| County | 2026 Pop. ↓ | Area (mi²) | Density (/mi²) | Change (2020) |
|---|---|---|---|---|
| Johnson County | 642,980 | 474 | 1,356 | 5.21% |
| Sedgwick County | 542,480 | 1K | 544 | 3.36% |
| Shawnee County | 178,992 | 544 | 329 | 0.16% |
| Wyandotte County | 171,324 | 152 | 1,127 | 1.42% |
| Douglas County | 120,901 | 456 | 265 | 1.78% |
| Leavenworth County | 84,836 | 463 | 183 | 3.49% |
| Riley County | 73,124 | 610 | 120 | 1.55% |
| Butler County | 69,842 | 1.4K | 49 | 3.64% |
| Reno County | 61,708 | 1.3K | 49 | -0.3% |
| Saline County | 53,440 | 720 | 74 | -1.51% |
| Crawford County | 39,056 | 590 | 66 | 0.26% |
| Finney County | 37,216 | 1.3K | 29 | -2.85% |
| Geary County | 37,211 | 385 | 97 | 1.2% |
| Miami County | 36,679 | 576 | 64 | 7.17% |
| Cowley County | 34,513 | 1.1K | 31 | -0.04% |
| Ford County | 33,699 | 1.1K | 31 | -1.5% |
| Harvey County | 33,540 | 540 | 62 | -1.34% |
| Lyon County | 32,181 | 847 | 38 | 0.22% |
| McPherson County | 30,033 | 898 | 33 | -0.54% |
| Montgomery County | 29,948 | 644 | 47 | -4.63% |
| Ellis County | 29,124 | 900 | 32 | 0.6% |
| Pottawatomie County | 27,514 | 841 | 33 | 8.23% |
| Franklin County | 26,353 | 572 | 46 | 1.3% |
| Barton County | 24,667 | 895 | 28 | -3.03% |
| Sumner County | 22,252 | 1.2K | 19 | -0.4% |
| Seward County | 21,009 | 640 | 33 | -3.88% |
| Labette County | 19,676 | 645 | 31 | -2.44% |
| Cherokee County | 19,043 | 588 | 32 | -1.35% |
| Dickinson County | 18,636 | 847 | 22 | 1.38% |
| Jefferson County | 18,285 | 533 | 34 | -0.25% |
| Atchison County | 16,175 | 431 | 38 | -0.92% |
| Neosho County | 15,643 | 571 | 27 | -1.72% |
| Osage County | 15,640 | 706 | 22 | -0.68% |
| Bourbon County | 14,198 | 635 | 22 | -0.98% |
| Jackson County | 13,452 | 656 | 21 | 1.62% |
| Allen County | 12,243 | 500 | 24 | -2.31% |
| Marion County | 11,589 | 944 | 12 | -1.69% |
| Linn County | 10,036 | 594 | 17 | 4.6% |
| Nemaha County | 10,022 | 717 | 14 | -2.4% |
| Marshall County | 9,794 | 900 | 11 | -2.26% |
| Rice County | 9,255 | 726 | 13 | -1.35% |
| Pratt County | 9,128 | 735 | 12 | -0.13% |
| Brown County | 9,075 | 571 | 16 | -4.27% |
| Cloud County | 8,936 | 715 | 12 | -0.82% |
| Coffey County | 8,605 | 627 | 14 | 2.96% |
| Wilson County | 8,297 | 570 | 15 | -3.31% |
| Anderson County | 8,103 | 580 | 14 | 3.34% |
| Clay County | 7,966 | 645 | 12 | -1.97% |
| Thomas County | 7,698 | 1.1K | 7.2 | -2.88% |
| Doniphan County | 7,594 | 393 | 19 | 1.65% |
| Kingman County | 7,033 | 863 | 8.1 | -5.3% |
| Grant County | 6,992 | 575 | 12 | -4.55% |
| Wabaunsee County | 6,957 | 794 | 8.8 | 0.9% |
| Russell County | 6,508 | 886 | 7.3 | -2.53% |
| Ellsworth County | 6,212 | 716 | 8.7 | -2.43% |
| Pawnee County | 5,931 | 754 | 7.9 | -5.12% |
| Greenwood County | 5,806 | 1.1K | 5.1 | -2.6% |
| Sherman County | 5,734 | 1.1K | 5.4 | -2.93% |
| Ottawa County | 5,680 | 721 | 7.9 | -0.86% |
| Gray County | 5,614 | 869 | 6.5 | -0.53% |
| Washington County | 5,505 | 895 | 6.2 | -0.7% |
| Mitchell County | 5,440 | 702 | 7.7 | -5.82% |
| Morris County | 5,389 | 695 | 7.8 | 0.48% |
| Harper County | 5,333 | 801 | 6.7 | -2.52% |
| Norton County | 5,271 | 878 | 6.0 | -3.32% |
| Stevens County | 4,921 | 727 | 6.8 | -6.12% |
| Scott County | 4,722 | 718 | 6.6 | -8.15% |
| Phillips County | 4,705 | 886 | 5.3 | -5.31% |
| Republic County | 4,655 | 717 | 6.5 | -0.47% |
| Rooks County | 4,575 | 891 | 5.1 | -6.37% |
| Stafford County | 4,091 | 792 | 5.2 | 0.76% |
| Barber County | 4,081 | 1.1K | 3.6 | -2.93% |
| Kearny County | 3,907 | 871 | 4.5 | -1.54% |
| Meade County | 3,812 | 978 | 3.9 | -6.09% |
| Haskell County | 3,640 | 578 | 6.3 | -3.14% |
| Smith County | 3,542 | 895 | 4.0 | -0.67% |
| Chautauqua County | 3,269 | 639 | 5.1 | -3.43% |
| Osborne County | 3,229 | 893 | 3.6 | -7.4% |
| Woodson County | 3,120 | 498 | 6.3 | 0.81% |
| Rush County | 2,859 | 718 | 4.0 | -2.76% |
| Lincoln County | 2,824 | 719 | 3.9 | -4.27% |
| Jewell County | 2,796 | 910 | 3.1 | -4.51% |
| Trego County | 2,744 | 889 | 3.1 | -2.31% |
| Decatur County | 2,719 | 894 | 3.0 | -1.56% |
| Logan County | 2,635 | 1.1K | 2.5 | -3.9% |
| Ness County | 2,605 | 1.1K | 2.4 | -2.58% |
| Gove County | 2,593 | 1.1K | 2.4 | -4.39% |
| Cheyenne County | 2,590 | 1K | 2.5 | -0.88% |
| Edwards County | 2,559 | 622 | 4.1 | -11.42% |
| Chase County | 2,551 | 773 | 3.3 | -0.89% |
| Hamilton County | 2,491 | 1K | 2.5 | 0.08% |
| Elk County | 2,466 | 644 | 3.8 | -0.56% |
| Kiowa County | 2,448 | 723 | 3.4 | -0.37% |
| Morton County | 2,442 | 730 | 3.3 | -9.45% |
| Rawlins County | 2,437 | 1.1K | 2.3 | -5.06% |
| Sheridan County | 2,421 | 896 | 2.7 | -1.02% |
| Graham County | 2,391 | 899 | 2.7 | -0.62% |
| Wichita County | 2,023 | 719 | 2.8 | -5.91% |
| Stanton County | 1,963 | 680 | 2.9 | -5.58% |
| Clark County | 1,910 | 975 | 2.0 | -3.34% |
| Comanche County | 1,673 | 788 | 2.1 | -0.36% |
| Hodgeman County | 1,573 | 860 | 1.8 | -9.65% |
| Lane County | 1,515 | 717 | 2.1 | -3.38% |
| Wallace County | 1,402 | 914 | 1.5 | -7.28% |
| Greeley County | 1,173 | 778 | 1.5 | -8.07% |
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)