PlainCities

Counties ranked

The fastest-growing U.S. counties

Kaufman County, TX ranks first by population change, April 2020 to July 2025 (+44.0%). Counties with 10,000 or more residents in 2020; growth = (2025 estimate - 2020 base) / the 2020 base.

Which counties grew fastest since 2020?

First to fifth: Kaufman County, TX (+44.0%), Jasper County, SC (+33.7%), Long County, GA (+33.5%), Liberty County, TX (+32.4%) and Dawson County, GA (+32.0%).

The fastest-growing U.S. counties, by population change, April 2020 to July 2025 (the first 100 of 2,412).
RankCountyPopulation change, April 2020 to July 2025Residents, 2025
1 Kaufman County, TX +44.0% 209,235
2 Jasper County, SC +33.7% 38,533
3 Long County, GA +33.5% 21,557
4 Liberty County, TX +32.4% 121,364
5 Dawson County, GA +32.0% 35,365
6 Jackson County, GA +30.7% 99,265
7 Rockwall County, TX +30.5% 140,738
8 Comal County, TX +29.6% 209,166
9 Brunswick County, NC +27.8% 174,702
10 St. Johns County, FL +26.7% 346,328
11 Pinal County, AZ +26.6% 539,380
12 Hays County, TX +26.3% 304,390
13 Montgomery County, TX +25.9% 781,194
14 Ellis County, TX +25.2% 240,867
15 Parker County, TX +24.6% 184,767
16 Osceola County, FL +23.9% 481,718
17 Walton County, FL +23.9% 93,288
18 Chambers County, TX +23.8% 57,594
19 Williamson County, TX +23.6% 752,827
20 Hunt County, TX +23.4% 123,336
21 Waller County, TX +23.1% 69,858
22 Bastrop County, TX +22.3% 118,908
23 St. Lucie County, FL +22.2% 402,449
24 New Kent County, VA +22.1% 28,022
25 Wise County, TX +22.1% 83,778
26 Hendry County, FL +21.8% 48,276
27 Horry County, SC +21.8% 427,551
28 Collin County, TX +21.7% 1,297,179
29 Flagler County, FL +21.7% 140,360
30 Sumter County, FL +21.6% 157,772
31 Canadian County, OK +21.4% 187,189
32 Johnson County, TX +21.1% 218,048
33 Jasper County, GA +20.8% 17,632
34 Polk County, FL +20.7% 874,790
35 Tooele County, UT +20.3% 87,461
36 Kendall County, TX +20.3% 53,289
37 Caldwell County, TX +20.2% 55,150
38 Pasco County, FL +20.0% 674,516
39 Pender County, NC +19.8% 72,111
40 Franklin County, NC +19.5% 82,037
41 Berkeley County, SC +19.5% 274,666
42 Barrow County, GA +19.4% 99,773
43 Blanco County, TX +19.4% 13,581
44 McClain County, OK +19.1% 49,647
45 Canyon County, ID +19.0% 275,123
46 Lancaster County, SC +19.0% 114,296
47 Dallas County, IA +18.8% 118,457
48 Lake County, FL +18.8% 456,068
49 Johnston County, NC +18.7% 256,448
50 Limestone County, AL +18.7% 122,928
51 Washington County, UT +18.5% 213,670
52 Wilson County, TN +18.5% 175,033
53 Lincoln County, SD +18.4% 77,145
54 Fort Bend County, TX +18.3% 975,191
55 Nassau County, FL +18.3% 106,879
56 Currituck County, NC +18.0% 33,158
57 Denton County, TX +18.0% 1,069,346
58 Goochland County, VA +18.0% 29,187
59 Marion County, FL +17.8% 442,660
60 Banks County, GA +17.6% 21,273
61 Iron County, UT +17.2% 67,141
62 Elbert County, CO +17.2% 30,534
63 Manatee County, FL +17.1% 468,200
64 Maury County, TN +17.0% 118,131
65 Union County, OH +17.0% 73,446
66 Benton County, AR +17.0% 332,554
67 Grimes County, TX +16.9% 34,252
68 Sussex County, DE +16.8% 277,140
69 Bay County, FL +16.7% 204,479
70 Walton County, GA +16.7% 112,696
71 Burleson County, TX +16.5% 20,549
72 Guadalupe County, TX +16.4% 201,111
73 Bryan County, GA +16.4% 52,062
74 Charlotte County, FL +16.3% 217,212
75 Edgefield County, SC +16.2% 29,808
76 Loudon County, TN +16.2% 63,764
77 Spartanburg County, SC +16.1% 380,857
78 Boundary County, ID +16.1% 13,997
79 Burnet County, TX +16.1% 57,015
80 Baldwin County, AL +15.5% 267,761
81 Bonner County, ID +15.5% 54,420
82 Utah County, UT +15.2% 759,859
83 Juab County, UT +15.2% 13,567
84 Wagoner County, OK +15.2% 93,263
85 Lee County, FL +15.1% 875,607
86 Weld County, CO +15.0% 378,426
87 Effingham County, GA +14.8% 74,397
88 Gilchrist County, FL +14.7% 20,488
89 Monroe County, GA +14.5% 32,023
90 Hood County, TX +14.5% 70,501
91 Lawrence County, SD +14.3% 29,459
92 Berkeley County, WV +14.3% 139,522
93 Jefferson County, ID +14.3% 35,297
94 Louisa County, VA +14.2% 42,924
95 Boone County, IN +14.0% 80,689
96 Hernando County, FL +14.0% 221,701
97 Hancock County, IN +14.0% 90,969
98 Teton County, ID +13.9% 13,254
99 Gem County, ID +13.8% 21,773
100 Lincoln County, NC +13.7% 98,654

Source: Census Bureau population estimates, Vintage 2025 (CO-EST2025) · Census Bureau source

How is this ranking made?

One figure is read for each county: the population change, April 2020 to July 2025. Equal figures share a rank. A ranking measures one number; it is not a judgment of a place. The rules are on the methodology page (how a survey figure's reliability is judged), and every ranking is on the rankings page.

Source: PlainCities ranking method applied to the Census Bureau population estimates, Vintage 2025 (CO-EST2025) · How ranks are computed