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 |
|---|---|---|---|---|
| 151 | Louisa County | Virginia | 1.8% | 42,924 |
| 152 | Gilchrist County | Florida | 1.8% | 20,488 |
| 153 | Arlington County | Virginia | 1.8% | 243,931 |
| 154 | Aiken County | South Carolina | 1.8% | 181,515 |
| 155 | Wasatch County | Utah | 1.8% | 38,514 |
| 156 | Santa Rosa County | Florida | 1.8% | 211,115 |
| 157 | Grant County | Kentucky | 1.7% | 26,181 |
| 158 | Kershaw County | South Carolina | 1.7% | 73,166 |
| 159 | Hart County | Georgia | 1.7% | 28,639 |
| 160 | Nye County | Nevada | 1.7% | 57,336 |
| 161 | Hood County | Texas | 1.7% | 70,501 |
| 162 | Robertson County | Tennessee | 1.7% | 80,175 |
| 163 | Monroe County | Georgia | 1.7% | 32,023 |
| 164 | Cass County | Missouri | 1.7% | 115,859 |
| 165 | Isanti County | Minnesota | 1.7% | 44,386 |
| 166 | Cabarrus County | North Carolina | 1.6% | 249,725 |
| 167 | Rutherford County | Tennessee | 1.6% | 386,352 |
| 168 | Suffolk city | Virginia | 1.6% | 104,699 |
| 169 | Kendall County | Illinois | 1.6% | 145,470 |
| 170 | Paulding County | Georgia | 1.6% | 190,996 |
| 171 | Lee County | Florida | 1.6% | 875,607 |
| 172 | Douglas County | Colorado | 1.6% | 399,396 |
| 173 | Greenville County | South Carolina | 1.6% | 583,125 |
| 174 | Washington County | Texas | 1.6% | 38,288 |
| 175 | Culpeper County | Virginia | 1.6% | 57,666 |
| 176 | Waynesboro city | Virginia | 1.6% | 23,951 |
| 177 | Polk County | Georgia | 1.6% | 45,514 |
| 178 | Carver County | Minnesota | 1.6% | 114,379 |
| 179 | Sumner County | Tennessee | 1.6% | 215,538 |
| 180 | Hill County | Texas | 1.6% | 39,503 |
| 181 | Bulloch County | Georgia | 1.6% | 86,949 |
| 182 | Pickens County | Georgia | 1.6% | 37,167 |
| 183 | Minnehaha County | South Dakota | 1.6% | 212,691 |
| 184 | Newton County | Georgia | 1.5% | 125,583 |
| 185 | Coffee County | Tennessee | 1.5% | 62,419 |
| 186 | Alamance County | North Carolina | 1.5% | 186,177 |
| 187 | Chatham County | North Carolina | 1.5% | 85,111 |
| 188 | Johnson County | Missouri | 1.5% | 56,670 |
| 189 | Chesterfield County | Virginia | 1.5% | 397,148 |
| 190 | Shelby County | Kentucky | 1.5% | 51,243 |
| 191 | Gem County | Idaho | 1.5% | 21,773 |
| 192 | Union County | North Carolina | 1.5% | 267,674 |
| 193 | Fentress County | Tennessee | 1.5% | 20,322 |
| 194 | Bedford County | Tennessee | 1.5% | 55,273 |
| 195 | Union County | Tennessee | 1.5% | 21,450 |
| 196 | Dickson County | Tennessee | 1.5% | 58,662 |
| 197 | Montgomery County | Tennessee | 1.5% | 249,935 |
| 198 | Palo Pinto County | Texas | 1.5% | 30,791 |
| 199 | Wilson County | Texas | 1.5% | 56,139 |
| 200 | Bonneville County | Idaho | 1.5% | 135,771 |
1830 ranked entries.