US Census Bureau · ACS 2023
Every US county ranked by total population, from largest to smallest, based on the Census Bureau ACS 5-Year Estimates.
| # | County | State | Population |
|---|---|---|---|
| 1326 | Silver Bow County | Montana | 35,589 |
| 1327 | Madison County | Nebraska | 35,535 |
| 1328 | Harris County | Georgia | 35,509 |
| 1329 | Perry County | Ohio | 35,474 |
| 1330 | Floyd County | Kentucky | 35,342 |
| 1331 | Marshall County | Tennessee | 35,276 |
| 1332 | Wapello County | Iowa | 35,265 |
| 1333 | Greene County | Pennsylvania | 35,265 |
| 1334 | Becker County | Minnesota | 35,260 |
| 1335 | Morrow County | Ohio | 35,214 |
| 1336 | Vega Alta Municipio | Puerto Rico | 35,114 |
| 1337 | Las Piedras Municipio | Puerto Rico | 35,034 |
| 1338 | Monroe County | Illinois | 34,969 |
| 1339 | Brookings County | South Dakota | 34,968 |
| 1340 | Barry County | Missouri | 34,831 |
| 1341 | Lincoln County | Mississippi | 34,830 |
| 1342 | Clark County | Wisconsin | 34,736 |
| 1343 | DeSoto County | Florida | 34,719 |
| 1344 | Steuben County | Indiana | 34,648 |
| 1345 | Miami County | Kansas | 34,625 |
| 1346 | Wakulla County | Florida | 34,608 |
| 1347 | Taos County | New Mexico | 34,516 |
| 1348 | Effingham County | Illinois | 34,505 |
| 1349 | Alcorn County | Mississippi | 34,500 |
| 1350 | Cowley County | Kansas | 34,487 |
Data from the US Census Bureau American Community Survey (ACS) 5-Year Estimates, 2019–2023. Rankings include all counties, county equivalents, and independent cities in the United States. Click any county to see its full profile.