Fastest-growing counties in the US
Compare annual population growth in US counties and county equivalents.
U.S. Census Bureau Population EstimatesPeriod: July 1, 2024–July 1, 2025 · Vintage 2025Retrieved 2026-10-05T08:10:35+00:00
Percent change = (current July 1 population − previous July 1 population) / previous population × 100. Both estimates use the same Census vintage. Includes counties and county equivalents with at least 20,000 residents in the previous year. This is observed population change, not a forecast.
Ranks are competition ranks computed across the full filtered set.
| Rank | Name | State | Growth | Population |
|---|---|---|---|---|
| 1001 | Marathon County | Wisconsin | 0.2% | 139,432 |
| 1002 | Addison County | Vermont | 0.2% | 38,048 |
| 1003 | Fillmore County | Minnesota | 0.2% | 21,540 |
| 1004 | Carbon County | Pennsylvania | 0.2% | 65,868 |
| 1005 | Racine County | Wisconsin | 0.2% | 198,919 |
| 1006 | San Bernardino County | California | 0.2% | 2,224,091 |
| 1007 | Scott County | Iowa | 0.2% | 175,259 |
| 1008 | Lowndes County | Mississippi | 0.2% | 57,346 |
| 1009 | Henry County | Indiana | 0.2% | 49,137 |
| 1010 | Elko County | Nevada | 0.2% | 54,815 |
| 1011 | Shelby County | Ohio | 0.2% | 48,065 |
| 1012 | Hopkins County | Kentucky | 0.2% | 45,127 |
| 1013 | Calaveras County | California | 0.2% | 46,605 |
| 1014 | DeKalb County | Georgia | 0.2% | 774,394 |
| 1015 | Decatur County | Indiana | 0.2% | 26,576 |
| 1016 | Columbia County | Oregon | 0.2% | 54,091 |
| 1017 | Jefferson County | Washington | 0.2% | 33,970 |
| 1018 | Webb County | Texas | 0.2% | 281,224 |
| 1019 | Jackson County | Ohio | 0.2% | 32,817 |
| 1020 | Payne County | Oklahoma | 0.2% | 83,889 |
| 1021 | Hawkins County | Tennessee | 0.2% | 59,559 |
| 1022 | Cache County | Utah | 0.2% | 145,000 |
| 1023 | Cameron County | Texas | 0.2% | 433,946 |
| 1024 | Daviess County | Indiana | 0.2% | 34,209 |
| 1025 | Mifflin County | Pennsylvania | 0.2% | 46,127 |
| 1026 | Williamson County | Illinois | 0.2% | 67,225 |
| 1027 | Saline County | Missouri | 0.2% | 23,265 |
| 1028 | Augusta County | Virginia | 0.2% | 78,940 |
| 1029 | Angelina County | Texas | 0.2% | 88,154 |
| 1030 | Sonoma County | California | 0.2% | 486,444 |
| 1031 | Chesapeake city | Virginia | 0.2% | 255,332 |
| 1032 | Clark County | Wisconsin | 0.2% | 35,052 |
| 1033 | Clay County | Indiana | 0.2% | 26,410 |
| 1034 | Columbia County | Wisconsin | 0.2% | 58,132 |
| 1035 | Livingston County | Michigan | 0.2% | 197,315 |
| 1036 | Randolph County | Indiana | 0.2% | 24,438 |
| 1037 | Monroe County | Pennsylvania | 0.2% | 167,179 |
| 1038 | Shawnee County | Kansas | 0.2% | 178,607 |
| 1039 | Haywood County | North Carolina | 0.2% | 63,369 |
| 1040 | Jefferson County | Oregon | 0.2% | 25,740 |
| 1041 | Okmulgee County | Oklahoma | 0.2% | 37,241 |
| 1042 | Taney County | Missouri | 0.2% | 57,001 |
| 1043 | Montgomery County | North Carolina | 0.2% | 26,403 |
| 1044 | South Central Connecticut Planning Region | Connecticut | 0.2% | 578,741 |
| 1045 | Franklin County | Kansas | 0.2% | 26,299 |
| 1046 | Park County | Wyoming | 0.2% | 31,171 |
| 1047 | Muhlenberg County | Kentucky | 0.2% | 30,634 |
| 1048 | Tuscaloosa County | Alabama | 0.2% | 241,368 |
| 1049 | Jackson County | Oregon | 0.2% | 221,795 |
| 1050 | Waldo County | Maine | 0.2% | 40,693 |
1830 ranked entries.