Fastest Growing Counties in Kansas (2026)

County
Rank
Change (2020) ↓
2026 Pop.
2020 Pop.
Pottawatomie County18.63%27,61625,421
Miami County26.8%36,54534,219
Johnson County35.69%645,940611,161
Leavenworth County45.59%86,54081,961
Stanton County54.99%2,1892,085
Sedgwick County64.36%547,735524,837
Wabaunsee County74.35%7,1906,890
Jackson County84.18%13,79113,238
Butler County94.17%70,19867,389
Douglas County104.06%123,609118,787
Dickinson County113.44%18,99918,367
Anderson County123.28%8,0987,841
Wyandotte County133.24%174,390168,920
Riley County143.21%74,32572,011
Comanche County153.09%1,7341,682
Lyon County162.84%33,02632,113
Doniphan County172.64%7,6657,468
Ottawa County182.51%5,8755,731
Hamilton County192.37%2,5462,487
Cheyenne County202.22%2,6702,612
Finney County211.97%39,06438,310
Kiowa County221.92%2,5002,453
Linn County231.69%9,7539,591
Washington County241.52%5,6105,526
Franklin County251.38%26,37326,015
McPherson County261.15%30,53030,184
Mitchell County270.92%5,8315,778
Atchison County280.85%16,46316,325
Ellis County290.79%29,18128,951
Pratt County300.63%9,1979,139
Bourbon County310.52%14,40814,333
Gray County320.35%5,6605,640
Jefferson County330.31%18,38218,325
Trego County340.07%2,8062,804
Coffey County35-0.04%8,3598,362
Shawnee County36-0.04%178,634178,711
Harper County37-0.22%5,4555,467
Ford County38-0.28%34,12234,218
Lincoln County39-0.34%2,9362,946
Sumner County40-0.45%22,22222,323
Crawford County41-0.45%38,77438,951
Cherokee County42-0.48%19,20919,301
Smith County43-0.51%3,5413,559
Logan County44-0.62%2,7262,743
Woodson County45-0.65%3,0793,099
Reno County46-0.78%61,41361,894
Osage County47-0.79%15,61515,740
Neosho County48-0.95%15,75415,905
Marshall County49-0.98%9,92410,022
Harvey County50-1%33,65633,996
Saline County51-1.02%53,69354,248
Republic County52-1.05%4,6234,672
Jewell County53-1.16%2,8952,929
Cowley County54-1.35%34,06834,535
Norton County55-1.38%5,3775,452
Rice County56-1.52%9,2429,385
Allen County57-1.55%12,34312,537
Graham County58-1.58%2,3682,406
Sherman County59-1.63%5,8065,902
Seward County60-2.05%21,41021,857
Morris County61-2.07%5,2595,370
Geary County62-2.1%35,99336,766
Decatur County63-2.29%2,6842,747
Chautauqua County64-2.46%3,2973,380
Nemaha County65-2.58%9,99810,263
Clay County66-2.61%7,9158,127
Marion County67-2.66%11,47411,787
Russell County68-2.68%6,4946,673
Barton County69-2.84%24,70325,426
Sheridan County70-2.87%2,3732,443
Greenwood County71-3.01%5,7955,975
Thomas County72-3.06%7,6907,933
Ellsworth County73-3.09%6,1746,371
Wilson County74-3.12%8,3188,586
Barber County75-3.55%4,0544,203
Kearny County76-3.59%3,8183,960
Labette County77-3.72%19,41020,160
Ness County78-3.96%2,5732,679
Rooks County79-3.97%4,6924,886
Clark County80-4.05%1,8971,977
Hodgeman County81-4.66%1,6571,738
Grant County82-4.79%6,9757,326
Elk County83-4.85%2,3522,472
Montgomery County84-4.89%29,86531,400
Meade County85-5.12%3,8544,062
Edwards County86-5.31%2,7312,884
Stevens County87-5.51%4,9575,246
Wichita County88-5.54%2,0302,149
Pawnee County89-5.57%5,9006,248
Phillips County90-5.73%4,6754,959
Stafford County91-6.05%3,8074,052
Cloud County92-6.07%8,4719,018
Rush County93-6.11%2,7642,944
Scott County94-6.14%4,8185,133
Brown County95-6.19%8,8929,479
Chase County96-6.37%2,4112,575
Wallace County97-6.48%1,4141,512
Haskell County98-6.57%3,5133,760
Gove County99-7.66%2,5082,716
Osborne County100-8.94%3,1793,491
Rawlins County101-9.25%2,3362,574
Kingman County102-10.3%6,6567,420
Lane County103-12.1%1,3801,570
Greeley County104-13.1%1,1081,275
Morton County105-15.98%2,2712,703

Kansas Counties Growth Overview

Kansas's counties show varied growth patterns from 2020 to 2026. Pottawatomie County leads with 1.39% annualized growth, followed by Miami County (1.1%) and Johnson County (0.93%). The largest counties are Johnson County (645,940), Sedgwick County (547,735), and Shawnee County (178,634). Of the 105 counties in Kansas, 34 are growing while 71 have experienced population decline. Overall, counties averaged -0.28% annualized growth, with total population growing by 0.4% annually.

Change (2020)

-0.05

-0.025

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0.025

0.05

0.075