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 |
|---|---|---|---|---|
| 301 | Grand Forks County | North Dakota | 1.2% | 74,501 |
| 302 | Brevard County | Florida | 1.2% | 663,982 |
| 303 | Gordon County | Georgia | 1.2% | 61,701 |
| 304 | Anderson County | South Carolina | 1.2% | 219,930 |
| 305 | Onslow County | North Carolina | 1.2% | 217,175 |
| 306 | Shelby County | Alabama | 1.2% | 238,552 |
| 307 | Washington County | Tennessee | 1.2% | 141,199 |
| 308 | King County | Washington | 1.2% | 2,344,939 |
| 309 | Lincoln County | North Carolina | 1.2% | 98,654 |
| 310 | Callaway County | Missouri | 1.2% | 45,765 |
| 311 | Lubbock County | Texas | 1.2% | 328,906 |
| 312 | Saline County | Arkansas | 1.2% | 133,288 |
| 313 | Columbia County | Georgia | 1.2% | 169,189 |
| 314 | Eddy County | New Mexico | 1.1% | 62,509 |
| 315 | Hubbard County | Minnesota | 1.1% | 22,369 |
| 316 | Henderson County | Texas | 1.1% | 88,595 |
| 317 | Taylor County | Texas | 1.1% | 150,077 |
| 318 | Pitt County | North Carolina | 1.1% | 182,936 |
| 319 | Madison County | Indiana | 1.1% | 135,088 |
| 320 | Ravalli County | Montana | 1.1% | 48,582 |
| 321 | Rockingham County | Virginia | 1.1% | 89,316 |
| 322 | Texas County | Missouri | 1.1% | 25,994 |
| 323 | Breckinridge County | Kentucky | 1.1% | 21,503 |
| 324 | Hardin County | Tennessee | 1.1% | 27,983 |
| 325 | Highlands County | Florida | 1.1% | 111,122 |
| 326 | Lee County | Alabama | 1.1% | 189,881 |
| 327 | Clark County | Washington | 1.1% | 532,119 |
| 328 | Liberty County | Georgia | 1.1% | 70,313 |
| 329 | Duplin County | North Carolina | 1.1% | 51,571 |
| 330 | Lexington County | South Carolina | 1.1% | 317,588 |
| 331 | Snohomish County | Washington | 1.1% | 870,656 |
| 332 | Twin Falls County | Idaho | 1.1% | 97,539 |
| 333 | Le Flore County | Oklahoma | 1.1% | 50,196 |
| 334 | Roane County | Tennessee | 1.1% | 57,395 |
| 335 | Sequoyah County | Oklahoma | 1.1% | 40,842 |
| 336 | Saunders County | Nebraska | 1.1% | 23,702 |
| 337 | Wood County | Texas | 1.1% | 49,688 |
| 338 | Blount County | Tennessee | 1.1% | 143,820 |
| 339 | Anson County | North Carolina | 1.1% | 21,758 |
| 340 | Citrus County | Florida | 1.1% | 171,666 |
| 341 | Madera County | California | 1.1% | 167,927 |
| 342 | New Hanover County | North Carolina | 1.1% | 245,959 |
| 343 | Travis County | Texas | 1.1% | 1,389,670 |
| 344 | Boyle County | Kentucky | 1.1% | 31,632 |
| 345 | Anderson County | Kentucky | 1.1% | 25,225 |
| 346 | Lewis County | Washington | 1.1% | 88,062 |
| 347 | Stephens County | Georgia | 1.1% | 27,854 |
| 348 | Newton County | Missouri | 1.1% | 62,263 |
| 349 | Macon County | North Carolina | 1.1% | 39,232 |
| 350 | Isle of Wight County | Virginia | 1.1% | 41,321 |
1830 ranked entries.