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 |
|---|---|---|---|---|
| 2201 | Jefferson County | Montana | 13,329 | 0.7% |
| 2202 | Jackson County | Kentucky | 13,325 | 0.2% |
| 2203 | Knott County | Kentucky | 13,321 | -1.1% |
| 2204 | Buffalo County | Wisconsin | 13,318 | -0.6% |
| 2205 | Roane County | West Virginia | 13,317 | -1.4% |
| 2206 | Poquoson city | Virginia | 13,292 | 3.3% |
| 2207 | Calhoun County | Florida | 13,289 | 0.5% |
| 2208 | Towns County | Georgia | 13,285 | 0.9% |
| 2209 | Glades County | Florida | 13,270 | 0.6% |
| 2210 | Teton County | Idaho | 13,254 | 1.1% |
| 2211 | White County | Illinois | 13,250 | -1.5% |
| 2212 | Dickenson County | Virginia | 13,236 | -1.1% |
| 2213 | Ford County | Illinois | 13,216 | -0.8% |
| 2214 | Lake County | Michigan | 13,182 | 1.3% |
| 2215 | Bath County | Kentucky | 13,176 | 1.6% |
| 2216 | Crenshaw County | Alabama | 13,175 | 0.3% |
| 2217 | Presque Isle County | Michigan | 13,128 | -0.7% |
| 2218 | Moffat County | Colorado | 13,122 | -1.4% |
| 2219 | Charlton County | Georgia | 13,121 | 0.7% |
| 2220 | Franklin County | Florida | 13,029 | 0.6% |
| 2221 | Monroe County | Ohio | 12,994 | -0.6% |
| 2222 | Todd County | Kentucky | 12,972 | 1.4% |
| 2223 | Cass County | Iowa | 12,960 | -0.3% |
| 2224 | Webster County | Kentucky | 12,929 | 0.4% |
| 2225 | Lewis County | Kentucky | 12,901 | -0.1% |
| 2226 | Bleckley County | Georgia | 12,866 | 1.7% |
| 2227 | Madison County | Missouri | 12,858 | 0.1% |
| 2228 | Union County | Kentucky | 12,839 | -2.2% |
| 2229 | Valley County | Idaho | 12,831 | 0.1% |
| 2230 | Powell County | Kentucky | 12,812 | -0.4% |
| 2231 | Wright County | Iowa | 12,801 | -0.4% |
| 2232 | Bamberg County | South Carolina | 12,796 | -0.3% |
| 2233 | Clay County | Illinois | 12,793 | -0.4% |
| 2234 | Lincoln County | Arkansas | 12,764 | -0.8% |
| 2235 | Pamlico County | North Carolina | 12,758 | 0.6% |
| 2236 | Big Horn County | Montana | 12,752 | -0.7% |
| 2237 | Edmonson County | Kentucky | 12,749 | 0.7% |
| 2238 | Stone County | Arkansas | 12,703 | -0.2% |
| 2239 | Skamania County | Washington | 12,669 | 0.2% |
| 2240 | Owyhee County | Idaho | 12,661 | -0.8% |
| 2241 | Vinton County | Ohio | 12,645 | 0.7% |
| 2242 | Calhoun County | Mississippi | 12,643 | -0.6% |
| 2243 | Goshen County | Wyoming | 12,640 | 0.0% |
| 2244 | Trousdale County | Tennessee | 12,623 | 3.6% |
| 2245 | Caldwell County | Kentucky | 12,609 | 0.2% |
| 2246 | Morrow County | Oregon | 12,602 | 1.2% |
| 2247 | Lamb County | Texas | 12,579 | -0.3% |
| 2248 | Breathitt County | Kentucky | 12,558 | -1.5% |
| 2249 | Northumberland County | Virginia | 12,557 | 1.2% |
| 2250 | Butler County | Kentucky | 12,520 | 0.3% |
3144 ranked entries.