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 22 +7.4% — -0.9% 172,604
02 Rockwall County TX 19 +5.7% — -0.2% 123,617
03 Liberty County TX 68 +5.5% — +0.7% 103,380
04 Comal County TX 2 +5.3% — -1.5% 183,826
05 Jackson County GA 8 +5.1% — -0.5% 84,757
06 St. Johns County FL 33 +5.0% — +0.3% 306,934
07 Osceola County FL 30 +5.0% — -1.1% 427,415
08 Hays County TX 3 +4.8% — -2.3% 268,638
09 Chambers County TX 63 +4.7% — +2.0% 51,498
10 Brunswick County NC 84 +4.6% — +4.0% 152,568
11 Montgomery County TX 13 +4.5% — -0.3% 684,432
12 Ellis County TX 36 +4.5% — +1.4% 213,160
13 Parker County TX 57 +4.5% — +2.2% 165,168
14 Williamson County TX 2 +4.5% — -2.5% 672,688
15 Pinal County AZ 76 +4.4% — +1.1% 469,006
16 Sumter County FL 43 +4.3% — +0.4% 143,408
17 Collin County TX 3 +4.2% — -2.3% 1,163,337
18 St. Lucie County FL 57 +4.1% — +1.5% 360,500
19 Bastrop County TX 3 +4.1% — -2.3% 106,582
20 Flagler County FL 56 +4.0% — +2.3% 126,528
21 Fort Bend County TX 5 +4.0% — -0.7% 893,767
22 Polk County FL 60 +3.9% — -0.8% 790,694
23 Canadian County OK 22 +3.9% — +3.1% 168,985
24 Walton County FL 79 +3.9% — +2.4% 82,948
25 Hunt County TX 18 +3.9% — -0.6% 108,972
26 Pasco County FL 6 +3.9% — -1.5% 611,444
27 Horry County SC 58 +3.8% — +3.0% 383,016
28 Dallas County IA 22 +3.7% — +2.5% 107,968
29 Wise County TX 1 +3.7% — -0.2% 75,005
30 Johnson County TX 20 +3.6% — -0.3% 195,597
31 Denton County TX 6 +3.6% — -1.2% 979,561
32 Lake County FL 30 +3.6% — -0.0% 412,924
33 Lancaster County SC 23 +3.5% — +0.5% 104,475
34 Waller County TX 1 +3.5% — -1.0% 61,552
35 Tooele County UT 9 +3.5% — +1.2% 79,347
36 Washington County UT 84 +3.5% — +0.4% 196,431
37 Hampshire County MA 58 +3.5% — +5.3% 162,028
38 Canyon County ID 88 +3.5% — +3.3% 250,790
39 Lincoln County SD 72 +3.4% — +4.4% 70,638
40 Iron County UT 86 +3.4% — +2.7% 62,252
41 Wilson County TN 44 +3.4% — +4.4% 158,805
42 Limestone County AL 22 +3.4% — +2.9% 111,233
43 Nassau County FL 21 +3.4% — +3.1% 97,859
44 Berkeley County SC 70 +3.4% — +4.0% 246,802
45 Franklin County NC 96 +3.4% — +4.4% 74,386
46 Johnston County NC 69 +3.4% — +3.0% 234,263
47 Barrow County GA 69 +3.3% — +2.2% 89,886
48 Manatee County FL 7 +3.3% — -1.1% 429,792
49 Pender County NC 34 +3.3% — +5.2% 65,550
50 Bonner County ID 89 +3.2% — +4.6% 51,049

More Rankings

Most Affordable Counties Fastest Growing Counties Most Undervalued Housing Markets Best Counties for Real Estate Investment Counties with Highest GDP Growth Best Climate & Terrain Best Counties for Rental Yield Lowest BTI Scores Most Overvalued Housing Markets Biggest Capital Investments by County Best Counties for Families Best Air Quality (Large Counties) Worst Air Quality (Large Counties) Safest Boom Towns Safest Counties (Large Counties) Most Dangerous Counties (Large Counties)