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 |
|---|---|---|---|---|
| 1851 | Beadle County | South Dakota | 19,624 | 0.5% |
| 1852 | King William County | Virginia | 19,617 | 1.8% |
| 1853 | Calhoun County | Texas | 19,599 | -0.9% |
| 1854 | Wayne County | Kentucky | 19,597 | 0.2% |
| 1855 | Richland Parish | Louisiana | 19,582 | -0.4% |
| 1856 | Kent County | Maryland | 19,565 | 0.2% |
| 1857 | Langlade County | Wisconsin | 19,534 | 0.2% |
| 1858 | Pointe Coupee Parish | Louisiana | 19,520 | -1.7% |
| 1859 | Polk County | Arkansas | 19,486 | 0.3% |
| 1860 | Clay County | Kentucky | 19,465 | -0.5% |
| 1861 | Washington County | Georgia | 19,453 | -1.2% |
| 1862 | Martin County | Minnesota | 19,440 | -0.6% |
| 1863 | Adair County | Kentucky | 19,423 | 1.0% |
| 1864 | Los Alamos County | New Mexico | 19,407 | -0.1% |
| 1865 | Perry County | Indiana | 19,389 | 0.0% |
| 1866 | Henry County | Iowa | 19,349 | -0.1% |
| 1867 | Green Lake County | Wisconsin | 19,305 | -0.1% |
| 1868 | Jackson County | Iowa | 19,288 | -0.3% |
| 1869 | Crisp County | Georgia | 19,237 | -1.1% |
| 1870 | Lincoln County | West Virginia | 19,177 | -1.0% |
| 1871 | Cherokee County | Kansas | 19,105 | -0.3% |
| 1872 | Appling County | Georgia | 19,100 | 1.7% |
| 1873 | Perry County | Missouri | 19,093 | -0.1% |
| 1874 | Yancey County | North Carolina | 19,084 | 0.1% |
| 1875 | Hempstead County | Arkansas | 19,080 | -0.9% |
| 1876 | Fayette County | Iowa | 19,047 | -0.3% |
| 1877 | Hertford County | North Carolina | 19,015 | -0.4% |
| 1878 | Franklin Parish | Louisiana | 19,002 | -0.7% |
| 1879 | Monroe County | Alabama | 18,965 | -0.6% |
| 1880 | St. James Parish | Louisiana | 18,938 | -0.9% |
| 1881 | Brantley County | Georgia | 18,936 | 1.3% |
| 1882 | Berrien County | Georgia | 18,932 | 0.8% |
| 1883 | Bosque County | Texas | 18,918 | -0.2% |
| 1884 | Andrews County | Texas | 18,914 | 0.6% |
| 1885 | East Feliciana Parish | Louisiana | 18,911 | -0.4% |
| 1886 | Warren County | North Carolina | 18,898 | -0.8% |
| 1887 | Randolph County | Arkansas | 18,876 | -0.4% |
| 1888 | Sawyer County | Wisconsin | 18,846 | 0.3% |
| 1889 | Frio County | Texas | 18,823 | 0.1% |
| 1890 | Madison County | Florida | 18,759 | 0.6% |
| 1891 | Grant County | Arkansas | 18,756 | 0.9% |
| 1892 | Colonial Heights city | Virginia | 18,738 | 0.6% |
| 1893 | Lee County | Texas | 18,729 | 1.2% |
| 1894 | Paulding County | Ohio | 18,727 | -0.2% |
| 1895 | Johnson County | Tennessee | 18,718 | 1.1% |
| 1896 | Kalkaska County | Michigan | 18,693 | 0.3% |
| 1897 | Ste. Genevieve County | Missouri | 18,689 | 0.5% |
| 1898 | Waseca County | Minnesota | 18,688 | 0.1% |
| 1899 | Crawford County | Illinois | 18,648 | 0.1% |
| 1900 | Tishomingo County | Mississippi | 18,639 | 0.2% |
3144 ranked entries.