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 |
|---|---|---|---|---|
| 2301 | Iron County | Michigan | 11,757 | -0.1% |
| 2302 | Macon County | Georgia | 11,756 | -0.8% |
| 2303 | Blackford County | Indiana | 11,730 | -0.8% |
| 2304 | Terry County | Texas | 11,720 | 0.7% |
| 2305 | Shelby County | Iowa | 11,689 | -0.8% |
| 2306 | Rolette County | North Dakota | 11,688 | 0.2% |
| 2307 | Chickasaw County | Iowa | 11,663 | -0.5% |
| 2308 | Green County | Kentucky | 11,644 | 0.8% |
| 2309 | Marion County | Kansas | 11,634 | -0.4% |
| 2310 | Owen County | Kentucky | 11,601 | 1.2% |
| 2311 | Montgomery County | Missouri | 11,590 | 0.3% |
| 2312 | Sumter County | Alabama | 11,588 | -0.4% |
| 2313 | Koochiching County | Minnesota | 11,587 | -0.1% |
| 2314 | Washington County | Idaho | 11,583 | 0.8% |
| 2315 | Perry County | Mississippi | 11,577 | 1.1% |
| 2316 | Summers County | West Virginia | 11,532 | -0.4% |
| 2317 | Ramsey County | North Dakota | 11,530 | 0.0% |
| 2318 | Alleghany County | North Carolina | 11,479 | 0.7% |
| 2319 | Marshall County | Illinois | 11,473 | -0.8% |
| 2320 | Carbon County | Montana | 11,466 | -0.3% |
| 2321 | Watonwan County | Minnesota | 11,459 | 0.8% |
| 2322 | Okfuskee County | Oklahoma | 11,451 | 0.9% |
| 2323 | Pope County | Minnesota | 11,420 | -0.4% |
| 2324 | Cottonwood County | Minnesota | 11,405 | 0.0% |
| 2325 | Charlotte County | Virginia | 11,401 | 0.7% |
| 2326 | Sierra County | New Mexico | 11,395 | -0.2% |
| 2327 | Richland County | Montana | 11,377 | 2.8% |
| 2328 | Cherokee County | Iowa | 11,369 | -1.3% |
| 2329 | Camden County | North Carolina | 11,315 | 0.6% |
| 2330 | Greene County | Illinois | 11,313 | -0.7% |
| 2331 | Candler County | Georgia | 11,275 | 1.0% |
| 2332 | Mackinac County | Michigan | 11,236 | 1.2% |
| 2333 | Telfair County | Georgia | 11,195 | 0.6% |
| 2334 | Monroe County | Kentucky | 11,191 | 0.3% |
| 2335 | Greensville County | Virginia | 11,181 | 0.1% |
| 2336 | Dooly County | Georgia | 11,156 | -0.4% |
| 2337 | Carroll County | Kentucky | 11,141 | 0.3% |
| 2338 | Ward County | Texas | 11,125 | 0.4% |
| 2339 | Magoffin County | Kentucky | 11,110 | -0.5% |
| 2340 | Rio Grande County | Colorado | 11,087 | -0.5% |
| 2341 | Bacon County | Georgia | 11,070 | 0.2% |
| 2342 | Grant County | West Virginia | 11,041 | 0.7% |
| 2343 | Evans County | Georgia | 11,028 | 0.7% |
| 2344 | Lancaster County | Virginia | 10,995 | 0.2% |
| 2345 | Franklin County | Texas | 10,994 | 1.4% |
| 2346 | Lake County | South Dakota | 10,993 | -0.5% |
| 2347 | Jefferson Davis County | Mississippi | 10,941 | -0.8% |
| 2348 | Colfax County | Nebraska | 10,934 | 0.2% |
| 2349 | Wabash County | Illinois | 10,907 | -1.1% |
| 2350 | Conecuh County | Alabama | 10,899 | -1.3% |
3144 ranked entries.