Fastest Growing Counties in Kansas (2025)

County
Rank
Change (2020)
2025 Pop.
2020 Pop.
Miami County16.29%36,37834,224
Linn County24.58%10,0269,587
Pottawatomie County34.53%26,56225,411
Wabaunsee County43.8%7,1536,891
Leavenworth County53.35%84,71081,966
Butler County62.86%69,31867,391
Johnson County72.84%628,529611,149
Gray County82.83%5,8075,647
Douglas County92.41%121,645118,784
Cheyenne County102.22%2,6722,614
Jackson County112.12%13,52013,239
Osage County122.04%16,06215,741
Ottawa County131.97%5,8425,729
Wallace County141.92%1,5411,512
Sedgwick County151.88%534,671524,821
Franklin County161.76%26,45726,000
Smith County171.65%3,6263,567
Dickinson County181.37%18,62518,373
Chase County191.17%2,6012,571
Lyon County201.06%32,45432,113
Anderson County211.01%7,9187,839
Elk County220.93%2,5052,482
Doniphan County230.74%7,5297,474
Harper County240.6%5,5055,472
Woodson County250.39%3,1113,099
Russell County260.37%6,7036,678
Gove County270.26%2,7212,714
Bourbon County280.02%14,33814,335
Decatur County29-0.04%2,7582,759
Washington County30-0.07%5,5265,530
McPherson County31-0.12%30,14730,184
Sumner County32-0.2%22,28422,328
Jefferson County33-0.27%18,27318,323
Shawnee County34-0.3%178,164178,709
Ford County35-0.36%34,09234,215
Lincoln County36-0.37%2,9382,949
Pratt County37-0.47%9,1009,143
Ellis County38-0.68%28,75028,948
Reno County39-0.79%61,38761,878
Ellsworth County40-1%6,3056,369
Cherokee County41-1.02%19,11219,309
Coffey County42-1.29%8,2498,357
Riley County43-1.3%71,08072,016
Mitchell County44-1.32%5,6975,773
Haskell County45-1.6%3,7003,760
Republic County46-1.91%4,5754,664
Thomas County47-1.93%7,7797,932
Labette County48-1.93%19,78020,170
Sherman County49-1.98%5,7805,897
Norton County50-2.07%5,3405,453
Marshall County51-2.08%9,81510,023
Allen County52-2.19%12,25812,533
Sheridan County53-2.21%2,3912,445
Clay County54-2.24%7,9398,121
Atchison County55-2.36%15,94216,328
Harvey County56-2.4%33,17033,986
Nemaha County57-2.42%10,01410,262
Crawford County58-2.43%38,00238,948
Marion County59-2.45%11,50411,793
Wyandotte County60-2.56%164,591168,914
Cowley County61-2.63%33,62534,534
Wichita County62-2.75%2,0902,149
Graham County63-2.87%2,3342,403
Greenwood County64-3.06%5,7945,977
Finney County65-3.09%37,12038,304
Morris County66-3.11%5,2025,369
Saline County67-3.2%52,51654,254
Hamilton County68-3.22%2,4072,487
Barton County69-3.33%24,58125,427
Cloud County70-3.5%8,6949,009
Chautauqua County71-3.51%3,2673,386
Trego County72-3.64%2,7012,803
Rooks County73-3.66%4,7144,893
Rice County74-3.72%9,0409,389
Meade County75-3.79%3,9074,061
Pawnee County76-4.06%6,0026,256
Lane County77-4.4%1,4991,568
Montgomery County78-4.48%29,99831,404
Osborne County79-4.9%3,3193,490
Phillips County80-4.92%4,7174,961
Brown County81-4.94%9,0049,472
Ness County82-4.98%2,5402,673
Neosho County83-5.1%15,09415,905
Grant County84-5.26%6,9417,326
Jewell County85-5.33%2,7712,927
Logan County86-5.48%2,5892,739
Comanche County87-5.54%1,5851,678
Barber County88-5.55%3,9654,198
Kearny County89-5.63%3,7393,962
Kiowa County90-5.82%2,3122,455
Morton County91-6%2,5382,700
Seward County92-6.16%20,51121,857
Wilson County93-6.34%8,0388,582
Stafford County94-6.52%3,7854,049
Stevens County95-6.56%4,8995,243
Edwards County96-7.11%2,6792,884
Geary County97-7.28%34,08336,760
Scott County98-7.53%4,7525,139
Kingman County99-7.74%6,8507,425
Rawlins County100-8.9%2,3432,572
Hodgeman County101-9.56%1,5711,737
Rush County102-11.23%2,6082,938
Stanton County103-15.12%1,7692,084
Greeley County104-15.31%1,0791,274
Clark County105-15.97%1,6631,979

Kansas County Growth Overview

Kansas's counties show varied growth patterns from 2020 to 2025. Miami County leads with 6.29% annualized growth, followed by Linn County (4.58%) and Pottawatomie County (4.53%). The largest counties are Johnson County (628,529), Sedgwick County (534,671), and Shawnee County (178,164). Of the 105 counties in Kansas, 28 are growing while 77 have experienced population decline. Overall, counties averaged -2.38% annualized growth, with total population growing by 0.34% annually.