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 |
|---|---|---|---|---|
| 601 | Rockingham County | New Hampshire | 0.6% | 324,077 |
| 602 | Crawford County | Arkansas | 0.6% | 62,657 |
| 603 | Putnam County | Ohio | 0.6% | 34,380 |
| 604 | Morgan County | Georgia | 0.6% | 22,095 |
| 605 | Jackson County | Alabama | 0.6% | 54,281 |
| 606 | Lorain County | Ohio | 0.6% | 323,219 |
| 607 | McHenry County | Illinois | 0.6% | 317,751 |
| 608 | St. Croix County | Wisconsin | 0.6% | 98,276 |
| 609 | Abbeville County | South Carolina | 0.6% | 24,836 |
| 610 | Pulaski County | Kentucky | 0.6% | 67,384 |
| 611 | Okeechobee County | Florida | 0.6% | 42,608 |
| 612 | Saratoga County | New York | 0.6% | 241,343 |
| 613 | Glynn County | Georgia | 0.6% | 87,599 |
| 614 | Oxford County | Maine | 0.6% | 60,346 |
| 615 | Delaware County | Oklahoma | 0.6% | 41,910 |
| 616 | San Francisco County | California | 0.6% | 826,079 |
| 617 | Riverside County | California | 0.6% | 2,544,916 |
| 618 | Harrison County | Indiana | 0.6% | 40,437 |
| 619 | El Paso County | Colorado | 0.6% | 757,040 |
| 620 | Orange County | New York | 0.6% | 417,669 |
| 621 | Whitfield County | Georgia | 0.6% | 106,212 |
| 622 | McLennan County | Texas | 0.6% | 272,020 |
| 623 | Blue Earth County | Minnesota | 0.6% | 70,634 |
| 624 | Grundy County | Illinois | 0.6% | 54,052 |
| 625 | Benton County | Iowa | 0.6% | 26,004 |
| 626 | Stearns County | Minnesota | 0.6% | 164,110 |
| 627 | Hopkins County | Texas | 0.6% | 39,063 |
| 628 | Newberry County | South Carolina | 0.6% | 39,561 |
| 629 | Lavaca County | Texas | 0.6% | 20,651 |
| 630 | Clinton County | Ohio | 0.6% | 42,301 |
| 631 | Freestone County | Texas | 0.6% | 20,811 |
| 632 | Anderson County | Tennessee | 0.6% | 82,066 |
| 633 | Hennepin County | Minnesota | 0.6% | 1,284,784 |
| 634 | Warren County | Virginia | 0.6% | 42,740 |
| 635 | York County | Maine | 0.6% | 222,434 |
| 636 | Mitchell County | Georgia | 0.6% | 20,467 |
| 637 | Prince George's County | Maryland | 0.6% | 970,374 |
| 638 | Waushara County | Wisconsin | 0.6% | 25,223 |
| 639 | Carroll County | Arkansas | 0.6% | 29,263 |
| 640 | Jones County | Mississippi | 0.6% | 66,496 |
| 641 | Daviess County | Kentucky | 0.6% | 104,898 |
| 642 | Perry County | Ohio | 0.6% | 35,918 |
| 643 | Pearl River County | Mississippi | 0.6% | 59,363 |
| 644 | Polk County | Iowa | 0.6% | 516,546 |
| 645 | Tulsa County | Oklahoma | 0.6% | 698,782 |
| 646 | Butler County | Ohio | 0.6% | 400,128 |
| 647 | Beltrami County | Minnesota | 0.6% | 47,055 |
| 648 | Shelby County | Indiana | 0.6% | 45,882 |
| 649 | Clay County | Minnesota | 0.6% | 67,734 |
| 650 | Leelanau County | Michigan | 0.6% | 22,982 |
1830 ranked entries.