Ranked by Population Growth · Data updated 2024

Fastest Growing Counties in America

Counties experiencing the fastest population growth, signaling strong migration inflows and economic opportunity.

Fastest Growing Counties in America

Texas and Florida: The Migration Magnets

The story of America's fastest-growing counties is overwhelmingly a tale of two states: Texas and Florida. With 18 Texas counties and 11 Florida counties on this list, it's clear that sunbelt migration continues to drive population shifts. These states offer a potent combination of relative affordability, job opportunities, and desirable climates, drawing new residents from across the country and creating boomtowns at an astonishing pace.

Liberty County, TX: Affordability Fuels Growth

While many top-ranked counties boast higher home prices, Liberty County, TX stands out with the most affordable housing on the entire list. Its low income-to-home ratio (0.38) suggests that while population is surging, the cost of entry remains accessible. This affordability likely plays a significant role in attracting new residents, especially those seeking more bang for their buck within the booming Texas landscape.

Hays County, TX: Growth Amidst Cooling Momentum

Hays County, TX, despite its strong 4.8% population growth, shows the weakest 1-year forecast momentum on the entire list at -4.9%. This creates an interesting tension: a county that has recently experienced rapid influx, yet might be seeing a temporary slowdown in its immediate growth trajectory. It suggests that while the long-term appeal remains, the pace of new arrivals could be moderating in the very short term.

# County BTI Score Pop Growth GDP Growth 1yr Forecast Population
01 Kaufman County TX 14 +7.4% — -2.9% 172,604
02 Rockwall County TX 4 +5.7% — -3.0% 123,617
03 Liberty County TX 24 +5.5% — -1.9% 103,380
04 Comal County TX 3 +5.3% — -3.3% 183,826
05 Jackson County GA 20 +5.1% — -0.8% 84,757
06 St. Johns County FL 18 +5.0% — -1.1% 306,934
07 Osceola County FL 14 +5.0% — -1.3% 427,415
08 Hays County TX 2 +4.8% — -4.9% 268,638
09 Chambers County TX 47 +4.7% — -0.6% 51,498
10 Brunswick County NC 46 +4.6% — -1.2% 152,568
11 Montgomery County TX 10 +4.5% — -3.0% 684,432
12 Ellis County TX 55 +4.5% — -1.9% 213,160
13 Parker County TX 53 +4.5% — -1.7% 165,168
14 Williamson County TX 0 +4.5% — -4.1% 672,688
15 Pinal County AZ 44 +4.4% — -1.3% 469,006
16 Sumter County FL 22 +4.3% — -2.1% 143,408
17 Collin County TX 0 +4.2% — -3.7% 1,163,337
18 St. Lucie County FL 46 +4.1% — -1.2% 360,500
19 Bastrop County TX 8 +4.1% — -2.6% 106,582
20 Flagler County FL 40 +4.0% — -2.0% 126,528
21 Fort Bend County TX 2 +4.0% — -2.8% 893,767
22 Polk County FL 31 +3.9% — -1.7% 790,694
23 Canadian County OK 23 +3.9% — -0.7% 168,985
24 Walton County FL 78 +3.9% — -3.2% 82,948
25 Hunt County TX 37 +3.9% — -1.8% 108,972
26 Pasco County FL 16 +3.9% — -2.8% 611,444
27 Horry County SC 55 +3.8% — -1.6% 383,016
28 Dallas County IA 12 +3.7% — -0.8% 107,968
29 Wise County TX 5 +3.7% — -3.6% 75,005
30 Johnson County TX 43 +3.6% — -1.7% 195,597
31 Denton County TX 3 +3.6% — -3.3% 979,561
32 Lake County FL 27 +3.6% — -1.6% 412,924
33 Lancaster County SC 58 +3.5% — -0.2% 104,475
34 Waller County TX 2 +3.5% — -3.0% 61,552
35 Tooele County UT 21 +3.5% — -0.8% 79,347
36 Washington County UT 51 +3.5% — -1.6% 196,431
37 Hampshire County MA 48 +3.5% — +0.4% 162,028
38 Canyon County ID 81 +3.5% — -0.9% 250,790
39 Lincoln County SD 34 +3.4% — +1.1% 70,638
40 Iron County UT 98 +3.4% — +0.3% 62,252
41 Limestone County AL 42 +3.4% — -0.5% 111,233
42 Wilson County TN 32 +3.4% — -1.1% 158,805
43 Nassau County FL 40 +3.4% — -1.0% 97,859
44 Berkeley County SC 43 +3.4% — -1.0% 246,802
45 Franklin County NC 87 +3.4% — +0.2% 74,386
46 Johnston County NC 55 +3.4% — -0.8% 234,263
47 Barrow County GA 46 +3.3% — -1.0% 89,886
48 Manatee County FL 4 +3.3% — -2.8% 429,792
49 Pender County NC 18 +3.3% — -0.8% 65,550
50 Bonner County ID 36 +3.2% — +0.1% 51,049

More Rankings

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