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What are the fastest-growing counties in the U.S.?

Kaufman County, TX (+42.2%), Long County, GA (+32.6%) and Jasper County, SC (+32.2%) grew fastest in the U.S. between 2020 and 2025.

Data as of 2025 · updated

See the rankingAll rankings

Top 100 U.S. counties by population growth

U.S. counties with at least 10,000 residents ranked by population growth
RankCountyChange 2020–25Residents 2025
1Kaufman County, TX+42.2%209,235
2Long County, GA+32.6%21,557
3Jasper County, SC+32.2%38,533
4Liberty County, TX+31.2%121,364
5Dawson County, GA+30.7%35,365
6Jackson County, GA+29.3%99,265
7Rockwall County, TX+28.9%140,738
8Comal County, TX+27.8%209,166
9Brunswick County, NC+26.5%174,702
10Pinal County, AZ+25.4%539,380
11St. Johns County, FL+25.0%346,328
12Montgomery County, TX+24.9%781,194
13Hays County, TX+24.8%304,390
14Ellis County, TX+24.0%240,867
15Parker County, TX+23.5%184,767
16Osceola County, FL+23.2%481,718
17Hunt County, TX+23.0%123,336
18Walton County, FL+22.9%93,288
19Chambers County, TX+22.6%57,594
20Williamson County, TX+22.3%752,827
21Waller County, TX+21.9%69,858
22Wise County, TX+21.5%83,778
23Hendry County, FL+21.5%48,276
24St. Lucie County, FL+21.4%402,449
25Bastrop County, TX+21.3%118,908
26New Kent County, VA+21.2%28,022
27Sumter County, FL+21.1%157,772
28Flagler County, FL+21.0%140,360
29Horry County, SC+20.9%427,551
30Collin County, TX+20.6%1,297,179
31Johnson County, TX+20.5%218,048
32Canadian County, OK+20.4%187,189
33Jasper County, GA+20.2%17,632
34Caldwell County, TX+20.0%55,150
35Polk County, FL+19.8%874,790
36Kendall County, TX+19.6%53,289
37Tooele County, UT+19.2%87,461
38Pasco County, FL+19.1%674,516
39Pender County, NC+19.0%72,111
40Franklin County, NC+18.8%82,037
41Barrow County, GA+18.7%99,773
42Berkeley County, SC+18.7%274,666
43Blanco County, TX+18.6%13,581
44McClain County, OK+18.4%49,647
45Lancaster County, SC+18.3%114,296
46Lake County, FL+18.1%456,068
47Canyon County, ID+18.1%275,123
48Limestone County, AL+18.0%122,928
49Johnston County, NC+17.9%256,448
50Dallas County, IA+17.8%118,457
51Wilson County, TN+17.7%175,033
52Lincoln County, SD+17.5%77,145
53Fort Bend County, TX+17.4%975,191
54Washington County, UT+17.4%213,670
55Nassau County, FL+17.4%106,879
56Goochland County, VA+17.4%29,187
57Banks County, GA+17.3%21,273
58Marion County, FL+17.3%442,660
59Bay County, FL+17.1%204,479
60Denton County, TX+16.9%1,069,346
61Currituck County, NC+16.7%33,158
62Manatee County, FL+16.6%468,200
63Elbert County, CO+16.5%30,534
64Union County, OH+16.5%73,446
65Iron County, UT+16.4%67,141
66Grimes County, TX+16.3%34,252
67Burleson County, TX+16.2%20,549
68Sussex County, DE+16.1%277,140
69Edgefield County, SC+16.1%29,808
70Walton County, GA+16.0%112,696
71Benton County, AR+16.0%332,554
72Maury County, TN+16.0%118,131
73Madison County, MT+15.8%10,026
74Guadalupe County, TX+15.8%201,111
75Spartanburg County, SC+15.6%380,857
76Loudon County, TN+15.6%63,764
77Bryan County, GA+15.6%52,062
78Charlotte County, FL+15.5%217,212
79Boundary County, ID+15.3%13,997
80Burnet County, TX+15.2%57,015
81Baldwin County, AL+14.8%267,761
82Bonner County, ID+14.8%54,420
83Juab County, UT+14.8%13,567
84Wagoner County, OK+14.6%93,263
85Gilchrist County, FL+14.5%20,488
86Utah County, UT+14.5%759,859
87Lee County, FL+14.4%875,607
88Weld County, CO+14.2%378,426
89Effingham County, GA+14.1%74,397
90Monroe County, GA+14.1%32,023
91Lawrence County, SD+14.0%29,459
92Berkeley County, WV+13.7%139,522
93Hood County, TX+13.6%70,501
94Louisa County, VA+13.6%42,924
95Jefferson County, ID+13.6%35,297
96Boone County, IN+13.5%80,689
97Hancock County, IN+13.5%90,969
98Hernando County, FL+13.3%221,701
99Lincoln County, NC+13.2%98,654
100Lincoln County, MT+13.1%22,328

How this is ranked

The change in the Census Bureau's July 1 resident population estimates between 2020 and 2025. Only counties with at least 10,000 residents are listed here (the top 100); each county's own page ranks it against every U.S. county with the same figure. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in the U.S. is growing fastest?

Kaufman County, TX: +42.2%, ahead of Long County, GA (+32.6%) and Jasper County, SC (+32.2%), of 2,407 U.S. counties with at least 10,000 residents ranked.

How is this ranking calculated?

The change in the Census Bureau's July 1 resident population estimates between 2020 and 2025. Only counties with at least 10,000 residents are listed here (the top 100); each county's own page ranks it against every U.S. county with the same figure. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

More county rankings for the U.S.

Population growth in other states