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 |
|---|---|---|---|---|
| 501 | Bossier Parish | Louisiana | 131,867 | 0.5% |
| 502 | Hunterdon County | New Jersey | 131,781 | 0.5% |
| 503 | Humboldt County | California | 131,647 | -0.5% |
| 504 | Black Hawk County | Iowa | 131,532 | 0.0% |
| 505 | Carroll County | Georgia | 131,036 | 1.2% |
| 506 | Sebastian County | Arkansas | 130,641 | 0.2% |
| 507 | Clark County | Indiana | 130,451 | 2.1% |
| 508 | Tazewell County | Illinois | 130,049 | 0.1% |
| 509 | Clarke County | Georgia | 129,921 | -0.6% |
| 510 | Washington County | Rhode Island | 129,795 | -0.1% |
| 511 | Wichita County | Texas | 129,555 | 0.0% |
| 512 | Kennebec County | Maine | 129,067 | 0.3% |
| 513 | Cambria County | Pennsylvania | 128,968 | -0.7% |
| 514 | Gallatin County | Montana | 128,740 | 1.0% |
| 515 | Berkshire County | Massachusetts | 128,224 | -0.6% |
| 516 | Jasper County | Missouri | 127,428 | 0.8% |
| 517 | Morgan County | Alabama | 126,483 | 0.2% |
| 518 | Cochise County | Arizona | 126,332 | 0.9% |
| 519 | Gregg County | Texas | 126,095 | -0.2% |
| 520 | Rapides Parish | Louisiana | 125,877 | 0.0% |
| 521 | Newton County | Georgia | 125,583 | 1.5% |
| 522 | Fayette County | Georgia | 125,156 | 0.3% |
| 523 | Richland County | Ohio | 124,893 | -0.1% |
| 524 | Chautauqua County | New York | 124,126 | -0.5% |
| 525 | Missoula County | Montana | 123,513 | 0.9% |
| 526 | Hunt County | Texas | 123,336 | 3.5% |
| 527 | Allegan County | Michigan | 123,188 | 0.5% |
| 528 | Fayette County | Pennsylvania | 123,021 | -0.8% |
| 529 | Limestone County | Alabama | 122,928 | 3.3% |
| 530 | Lowndes County | Georgia | 122,867 | 0.4% |
| 531 | Henderson County | North Carolina | 122,375 | 0.9% |
| 532 | Wayne County | North Carolina | 122,278 | 0.9% |
| 533 | Comanche County | Oklahoma | 122,158 | 0.4% |
| 534 | Liberty County | Texas | 121,364 | 4.4% |
| 535 | La Crosse County | Wisconsin | 121,339 | 0.3% |
| 536 | Douglas County | Kansas | 120,920 | 0.0% |
| 537 | Bartow County | Georgia | 120,800 | 2.4% |
| 538 | Tom Green County | Texas | 120,602 | 0.3% |
| 539 | San Juan County | New Mexico | 120,340 | -0.2% |
| 540 | Robeson County | North Carolina | 119,941 | 0.5% |
| 541 | Blair County | Pennsylvania | 119,541 | -0.4% |
| 542 | Bastrop County | Texas | 118,908 | 2.6% |
| 543 | Matanuska-Susitna Borough | Alaska | 118,666 | 1.2% |
| 544 | Oswego County | New York | 118,569 | 0.3% |
| 545 | Dallas County | Iowa | 118,457 | 3.2% |
| 546 | Albemarle County | Virginia | 118,356 | 0.9% |
| 547 | Maury County | Tennessee | 118,131 | 3.2% |
| 548 | Sheboygan County | Wisconsin | 118,047 | 0.0% |
| 549 | Craighead County | Arkansas | 116,957 | 0.5% |
| 550 | Pennington County | South Dakota | 116,792 | 0.4% |
3144 ranked entries.