Largest counties by population
Rank US counties and county equivalents by resident population, not land area.
U.S. Census Bureau Population EstimatesPeriod: July 1, 2024–July 1, 2025 · Vintage 2025Retrieved 2026-10-05T08:10:35+00:00
July 1 resident population estimates from a single Census vintage. Counties are ranked by population, not land area. County equivalents include independent cities and other Census county-equivalent areas.
Ranks are competition ranks computed across the full filtered set.
| Rank | Name | State | Population | Growth |
|---|---|---|---|---|
| 1551 | Washington County | Florida | 26,695 | 0.9% |
| 1552 | Montezuma County | Colorado | 26,678 | -0.1% |
| 1553 | Juneau County | Wisconsin | 26,649 | 0.0% |
| 1554 | Grady County | Georgia | 26,590 | 0.4% |
| 1555 | Decatur County | Indiana | 26,576 | 0.2% |
| 1556 | Perry County | Kentucky | 26,555 | -0.9% |
| 1557 | Lewis County | New York | 26,479 | -0.1% |
| 1558 | Carroll County | Ohio | 26,475 | -0.3% |
| 1559 | Cherokee County | Alabama | 26,413 | 1.2% |
| 1560 | Del Norte County | California | 26,410 | -2.0% |
| 1560 | Clay County | Indiana | 26,410 | 0.2% |
| 1562 | Montgomery County | North Carolina | 26,403 | 0.2% |
| 1563 | Cassia County | Idaho | 26,397 | 0.7% |
| 1564 | Garvin County | Oklahoma | 26,377 | 0.3% |
| 1565 | Jerome County | Idaho | 26,362 | 0.3% |
| 1566 | George County | Mississippi | 26,331 | 1.9% |
| 1567 | Wasco County | Oregon | 26,310 | -0.6% |
| 1568 | Franklin County | Kansas | 26,299 | 0.2% |
| 1569 | Lamoille County | Vermont | 26,294 | 0.6% |
| 1570 | San Miguel County | New Mexico | 26,260 | -0.7% |
| 1571 | Milam County | Texas | 26,258 | 0.0% |
| 1572 | McNairy County | Tennessee | 26,236 | 0.4% |
| 1573 | Johnson County | Arkansas | 26,225 | -0.1% |
| 1574 | Hickman County | Tennessee | 26,219 | 1.2% |
| 1575 | Grant County | Kentucky | 26,181 | 1.7% |
| 1576 | Iroquois County | Illinois | 26,150 | -0.3% |
| 1577 | Carter County | Kentucky | 26,149 | -0.2% |
| 1578 | Aransas County | Texas | 26,146 | 1.8% |
| 1579 | Caddo County | Oklahoma | 26,130 | -0.6% |
| 1580 | Fannin County | Georgia | 26,111 | 0.6% |
| 1581 | Otsego County | Michigan | 26,080 | -0.1% |
| 1582 | Gladwin County | Michigan | 26,077 | 0.5% |
| 1583 | Todd County | Minnesota | 26,060 | 0.4% |
| 1584 | Charlevoix County | Michigan | 26,036 | -0.3% |
| 1585 | Benton County | Iowa | 26,004 | 0.6% |
| 1586 | Texas County | Missouri | 25,994 | 1.1% |
| 1587 | Franklin County | Georgia | 25,948 | 2.4% |
| 1588 | Hardee County | Florida | 25,932 | -0.7% |
| 1589 | McDonough County | Illinois | 25,916 | -0.8% |
| 1590 | Union County | Oregon | 25,900 | -0.2% |
| 1591 | Churchill County | Nevada | 25,851 | -0.4% |
| 1592 | Dickinson County | Michigan | 25,827 | -0.4% |
| 1593 | Miller County | Missouri | 25,817 | 0.5% |
| 1594 | Salem city | Virginia | 25,816 | 0.3% |
| 1595 | Cheboygan County | Michigan | 25,793 | -0.4% |
| 1596 | Wyoming County | Pennsylvania | 25,790 | -0.3% |
| 1597 | Jefferson County | Oregon | 25,740 | 0.2% |
| 1598 | Grainger County | Tennessee | 25,739 | 2.6% |
| 1599 | Plymouth County | Iowa | 25,697 | 0.1% |
| 1600 | Leflore County | Mississippi | 25,686 | -1.8% |
3144 ranked entries.