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 |
|---|---|---|---|
| 1801 | Orocovis Municipio | Puerto Rico | 21,351 |
| 1802 | Fillmore County | Minnesota | 21,346 |
| 1803 | Grenada County | Mississippi | 21,342 |
| 1804 | Jersey County | Illinois | 21,336 |
| 1805 | Dakota County | Nebraska | 21,331 |
| 1806 | Boone County | West Virginia | 21,312 |
| 1807 | Leake County | Mississippi | 21,288 |
| 1808 | Clinton County | Missouri | 21,259 |
| 1809 | Logan County | Arkansas | 21,240 |
| 1810 | Moore County | Texas | 21,234 |
| 1811 | Morgan County | Tennessee | 21,193 |
| 1812 | Newton County | Mississippi | 21,151 |
| 1813 | Letcher County | Kentucky | 21,146 |
| 1814 | Gray County | Texas | 21,131 |
| 1815 | Logan County | Colorado | 21,067 |
| 1816 | Allen County | Kentucky | 21,029 |
| 1817 | Washington County | Nebraska | 20,989 |
| 1818 | Jackson County | Wisconsin | 20,971 |
| 1819 | Dodge County | Minnesota | 20,962 |
| 1820 | Nodaway County | Missouri | 20,959 |
| 1821 | Wyoming County | West Virginia | 20,948 |
| 1822 | Adams County | Wisconsin | 20,928 |
| 1823 | Union Parish | Louisiana | 20,914 |
| 1824 | Texas County | Oklahoma | 20,880 |
| 1825 | Conway County | Arkansas | 20,872 |
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.