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 |
|---|---|---|---|---|
| 2001 | Giles County | Virginia | 16,564 | -0.4% |
| 2002 | Manassas Park city | Virginia | 16,560 | 0.8% |
| 2003 | Otoe County | Nebraska | 16,531 | 0.4% |
| 2004 | Bates County | Missouri | 16,512 | 0.4% |
| 2005 | Iowa County | Iowa | 16,504 | 0.2% |
| 2006 | Grand County | Colorado | 16,496 | 1.3% |
| 2007 | Northampton County | North Carolina | 16,491 | -0.2% |
| 2008 | Hardin County | Iowa | 16,455 | 0.0% |
| 2009 | Henry County | Kentucky | 16,447 | 1.5% |
| 2010 | Gooding County | Idaho | 16,446 | 0.3% |
| 2011 | Bristol city | Virginia | 16,418 | -0.2% |
| 2012 | Wayne County | Tennessee | 16,416 | 2.4% |
| 2013 | Oglethorpe County | Georgia | 16,415 | 1.8% |
| 2014 | Lewis County | West Virginia | 16,394 | -0.5% |
| 2015 | Edgar County | Illinois | 16,323 | -0.4% |
| 2016 | Taylor County | West Virginia | 16,287 | -1.2% |
| 2017 | Lawrence County | Arkansas | 16,273 | 0.5% |
| 2018 | Marshall County | Oklahoma | 16,255 | 0.7% |
| 2019 | Aitkin County | Minnesota | 16,252 | -0.2% |
| 2020 | Union County | Florida | 16,250 | 3.1% |
| 2021 | Van Buren County | Arkansas | 16,238 | 0.1% |
| 2022 | Crawford County | Iowa | 16,237 | -0.3% |
| 2023 | Warren County | Illinois | 16,222 | 0.7% |
| 2024 | Casey County | Kentucky | 16,205 | 0.9% |
| 2025 | Ashland County | Wisconsin | 16,203 | 0.0% |
| 2026 | Clay County | Iowa | 16,202 | -1.9% |
| 2027 | Cross County | Arkansas | 16,186 | -0.7% |
| 2028 | Benton County | Tennessee | 16,183 | 0.5% |
| 2029 | Atchison County | Kansas | 16,172 | 0.0% |
| 2030 | Hill County | Montana | 16,167 | 0.3% |
| 2031 | Scurry County | Texas | 16,162 | 0.0% |
| 2032 | Dade County | Georgia | 16,154 | 0.1% |
| 2033 | Rockcastle County | Kentucky | 16,148 | -0.4% |
| 2034 | Brooks County | Georgia | 16,101 | -1.2% |
| 2035 | Torrance County | New Mexico | 16,100 | 1.0% |
| 2036 | Pawnee County | Oklahoma | 16,029 | 0.0% |
| 2037 | Jefferson County | Florida | 16,007 | 0.4% |
| 2038 | Cleburne County | Alabama | 15,970 | 0.8% |
| 2039 | Gulf County | Florida | 15,943 | 0.3% |
| 2040 | Marquette County | Wisconsin | 15,927 | 0.6% |
| 2041 | Bledsoe County | Tennessee | 15,920 | 2.2% |
| 2042 | Crawford County | Wisconsin | 15,910 | -0.1% |
| 2043 | Potter County | Pennsylvania | 15,897 | -0.7% |
| 2044 | Franklin County | Idaho | 15,889 | 1.4% |
| 2045 | Wayne County | Illinois | 15,882 | 0.0% |
| 2046 | Fayette County | Alabama | 15,872 | -0.3% |
| 2047 | Williamsburg city | Virginia | 15,861 | -0.5% |
| 2048 | Socorro County | New Mexico | 15,838 | -0.6% |
| 2049 | Arkansas County | Arkansas | 15,836 | -1.6% |
| 2050 | Jackson Parish | Louisiana | 15,834 | 0.5% |
3144 ranked entries.