Fastest Growing Counties in Missouri (2026)

County
Rank
Change (2020) ↓
2026 Pop.
2020 Pop.
Lincoln County112.92%67,57459,842
Webster County212.85%44,02439,012
Hickory County310.75%9,1998,306
Warren County410.53%39,50535,740
Christian County59.1%97,41489,291
Cass County68.89%117,774108,160
Wright County78.79%19,81018,209
Ozark County88.53%9,2458,518
St. Clair County98.12%10,1099,350
Texas County108.06%26,28424,324
Platte County118.01%115,773107,187
Polk County127.53%33,99731,615
Newton County137.18%62,91858,702
Morgan County147.04%22,47520,997
Douglas County156.93%12,40811,604
Johnson County166.47%57,51654,023
Dallas County176.18%18,19217,133
Barry County186.14%36,67034,549
St. Charles County195.91%430,408406,407
Benton County205.69%20,53619,431
Gentry County215.37%6,4586,129
Carter County225.23%5,4735,201
Clay County235.22%267,390254,121
Dade County245.06%7,9697,585
Schuyler County255.02%4,2074,006
Miller County264.76%25,95124,772
Scotland County274.64%4,9164,698
Boone County284.64%192,595184,060
Cedar County294.49%14,84814,210
Jasper County304.48%128,387122,885
Callaway County314.4%46,29144,339
Monroe County324.25%9,0618,692
Lawrence County334.22%39,59337,990
Greene County344.03%311,398299,328
Stone County353.92%32,43631,212
Osage County363.8%13,75313,250
McDonald County373.77%24,15923,281
Franklin County383.76%108,793104,852
Pettis County393.73%44,61443,011
Henry County403.64%22,77721,976
Shannon County413.58%7,2867,034
Cape Girardeau County423.34%84,54181,811
Bates County433.26%16,57616,052
Laclede County443.19%37,19736,046
Jefferson County453.17%234,130226,944
Cooper County462.96%17,13616,643
Montgomery County472.93%11,62411,293
Pike County482.69%17,87917,411
Jackson County492.68%736,865717,643
St. Francois County502.61%68,16966,433
Caldwell County512.57%9,0538,826
Camden County522.56%43,89942,804
Washington County532.46%24,00923,432
Vernon County542.31%20,11419,659
Howell County552.29%40,71239,800
Harrison County562.06%8,3268,158
Daviess County572.05%8,6088,435
Madison County581.97%12,87212,623
Clinton County591.96%21,63021,214
Taney County601.9%57,12056,053
Cole County611.89%78,05376,608
Adair County621.88%25,75125,276
Barton County631.86%11,84011,624
Pulaski County641.83%54,99254,005
Oregon County651.73%8,7548,605
Lafayette County661.73%33,63033,059
Ray County671.71%23,53123,136
Phelps County681.65%45,28844,553
Ste. Genevieve County691.6%18,77618,480
Bollinger County701.57%10,72210,556
Andrew County711.42%18,36718,109
Moniteau County721.35%15,42915,223
Livingston County731.2%14,73014,555
Ralls County740.82%10,43710,352
Dent County750.8%14,50714,392
Randolph County760.76%24,64724,462
Howard County770.74%10,22910,154
Gasconade County780.65%14,85914,763
Marion County790.57%28,64228,480
Perry County800.54%19,07318,971
Ripley County810.45%10,71810,670
Knox County820.4%3,7483,733
Macon County83-0.01%15,19715,199
Scott County84-0.02%38,01338,021
Holt County85-0.02%4,1824,183
Crawford County86-0.05%23,01923,030
Saline County87-0.07%23,31723,334
Reynolds County88-0.21%6,0646,077
Grundy County89-0.26%9,7399,764
Audrain County90-0.27%24,71224,778
Chariton County91-0.3%7,3647,386
Butler County92-0.37%41,90942,064
Carroll County93-0.53%8,4218,466
Mississippi County94-0.62%12,05812,133
Linn County95-0.83%11,75611,854
Buchanan County96-1.17%83,48284,471
St. Louis County97-1.32%990,1561,003,365
Lewis County98-1.36%9,90510,042
Stoddard County99-1.65%28,18428,656
Maries County100-1.83%8,3008,455
Wayne County101-2.05%10,71310,937
Atchison County102-2.34%5,1835,307
Worth County103-2.49%1,9161,965
Iron County104-3.04%9,2239,512
Putnam County105-3.33%4,5304,686
Mercer County106-3.47%3,3943,516
Clark County107-4.47%6,3666,664
Sullivan County108-4.53%5,7145,985
Nodaway County109-4.61%20,05221,021
Shelby County110-5.52%5,7546,090
Dunklin County111-5.54%26,65328,216
Pemiscot County112-7.26%14,45115,583
St. Louis city113-8.14%275,843300,302
New Madrid County114-8.81%14,89116,329
DeKalb County115-16.35%9,70811,605

Missouri Counties Growth Overview

Missouri's counties show varied growth patterns from 2020 to 2026. Lincoln County leads with 2.05% annualized growth, followed by Webster County (2.03%) and Hickory County (1.72%). The largest counties are St. Louis County (990,156), Jackson County (736,865), and St. Charles County (430,408). Of the 115 counties in Missouri, 82 are growing while 33 have experienced population decline. Overall, counties averaged 0.33% annualized growth, with total population growing by 0.38% annually.

Change (2020)

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