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 |
|---|---|---|---|---|
| 351 | Owen County | Indiana | 1.1% | 21,886 |
| 352 | Antrim County | Michigan | 1.1% | 24,698 |
| 353 | Douglas County | Nevada | 1.0% | 50,111 |
| 354 | Richmond city | Virginia | 1.0% | 237,257 |
| 355 | Rockdale County | Georgia | 1.0% | 98,416 |
| 356 | Sevier County | Utah | 1.0% | 22,827 |
| 357 | Henderson County | Tennessee | 1.0% | 28,518 |
| 358 | Cumberland County | Tennessee | 1.0% | 66,300 |
| 359 | Pulaski County | Missouri | 1.0% | 54,442 |
| 360 | Rogers County | Oklahoma | 1.0% | 102,197 |
| 361 | Ware County | Georgia | 1.0% | 36,906 |
| 362 | Sherburne County | Minnesota | 1.0% | 104,194 |
| 363 | Codington County | South Dakota | 1.0% | 29,562 |
| 364 | Stevens County | Washington | 1.0% | 49,668 |
| 365 | Mercer County | Kentucky | 1.0% | 23,733 |
| 366 | Scott County | Minnesota | 1.0% | 159,017 |
| 367 | Anoka County | Minnesota | 1.0% | 381,605 |
| 368 | Morton County | North Dakota | 1.0% | 34,601 |
| 369 | Moore County | Texas | 1.0% | 21,891 |
| 370 | Kent County | Delaware | 1.0% | 194,786 |
| 371 | Bexar County | Texas | 1.0% | 2,160,088 |
| 372 | Cowlitz County | Washington | 1.0% | 114,885 |
| 373 | Adams County | Colorado | 1.0% | 554,668 |
| 374 | Broomfield County | Colorado | 1.0% | 79,174 |
| 375 | Hamblen County | Tennessee | 1.0% | 68,843 |
| 376 | Amherst County | Virginia | 1.0% | 31,962 |
| 377 | Forsyth County | North Carolina | 1.0% | 401,718 |
| 378 | Clay County | Florida | 1.0% | 239,593 |
| 379 | Harris County | Texas | 1.0% | 5,045,026 |
| 380 | Gallatin County | Montana | 1.0% | 128,740 |
| 381 | Tangipahoa Parish | Louisiana | 1.0% | 141,346 |
| 382 | Pickens County | South Carolina | 1.0% | 139,198 |
| 383 | Richland County | South Carolina | 1.0% | 434,956 |
| 384 | Johnson County | Kansas | 1.0% | 636,906 |
| 385 | Adams County | Mississippi | 1.0% | 30,061 |
| 386 | Cumberland County | Pennsylvania | 1.0% | 277,270 |
| 387 | Stark County | North Dakota | 0.9% | 34,013 |
| 388 | Smith County | Tennessee | 0.9% | 20,981 |
| 389 | Kitsap County | Washington | 0.9% | 283,374 |
| 390 | Montgomery County | New York | 0.9% | 50,046 |
| 391 | Sheridan County | Wyoming | 0.9% | 33,241 |
| 392 | Guilford County | North Carolina | 0.9% | 562,234 |
| 393 | Flathead County | Montana | 0.9% | 115,429 |
| 394 | Bartholomew County | Indiana | 0.9% | 85,729 |
| 395 | Prince William County | Virginia | 0.9% | 502,966 |
| 396 | Mecosta County | Michigan | 0.9% | 42,320 |
| 397 | St. Charles County | Missouri | 0.9% | 426,499 |
| 398 | Douglas County | Nebraska | 0.9% | 606,460 |
| 399 | Hamilton County | Tennessee | 0.9% | 390,833 |
| 400 | Colquitt County | Georgia | 0.9% | 47,438 |
1830 ranked entries.