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 |
|---|---|---|---|---|
| 2901 | Knox County | Missouri | 3,728 | 0.5% |
| 2902 | Chase County | Nebraska | 3,718 | 0.1% |
| 2903 | Sargent County | North Dakota | 3,711 | -0.3% |
| 2904 | Lewis County | Idaho | 3,704 | -0.2% |
| 2905 | Tensas Parish | Louisiana | 3,700 | -3.1% |
| 2906 | Lyman County | South Dakota | 3,694 | 0.1% |
| 2907 | Fisher County | Texas | 3,692 | 0.3% |
| 2908 | Echols County | Georgia | 3,685 | -0.1% |
| 2909 | Costilla County | Colorado | 3,679 | 0.2% |
| 2910 | Pope County | Illinois | 3,672 | -1.2% |
| 2911 | Sioux County | North Dakota | 3,667 | -1.3% |
| 2912 | Granite County | Montana | 3,658 | 0.5% |
| 2913 | Adams County | Iowa | 3,617 | 0.5% |
| 2914 | Ellis County | Oklahoma | 3,613 | -0.2% |
| 2915 | Concho County | Texas | 3,607 | 0.8% |
| 2916 | Haskell County | Kansas | 3,599 | 1.2% |
| 2917 | Hardin County | Illinois | 3,588 | -0.4% |
| 2918 | Smith County | Kansas | 3,566 | -0.7% |
| 2919 | Tyrrell County | North Carolina | 3,537 | 1.1% |
| 2920 | Cavalier County | North Dakota | 3,497 | -1.4% |
| 2921 | Aleutians East Borough | Alaska | 3,479 | 0.4% |
| 2922 | Norton city | Virginia | 3,477 | -1.1% |
| 2923 | Baylor County | Texas | 3,472 | -0.3% |
| 2924 | Hanson County | South Dakota | 3,456 | -1.3% |
| 2925 | Sheridan County | Montana | 3,436 | -1.2% |
| 2926 | Hudspeth County | Texas | 3,433 | -0.5% |
| 2927 | Coke County | Texas | 3,412 | 0.7% |
| 2928 | Mercer County | Missouri | 3,404 | -0.3% |
| 2929 | Petersburg Borough | Alaska | 3,394 | -0.7% |
| 2930 | Kimball County | Nebraska | 3,391 | 2.8% |
| 2931 | Baca County | Colorado | 3,347 | -1.2% |
| 2932 | Webster County | Nebraska | 3,336 | 0.3% |
| 2933 | Chautauqua County | Kansas | 3,321 | -1.5% |
| 2934 | Bennett County | South Dakota | 3,307 | 0.0% |
| 2935 | Hardeman County | Texas | 3,292 | -2.1% |
| 2936 | Nance County | Nebraska | 3,290 | 0.1% |
| 2937 | Osborne County | Kansas | 3,285 | -1.7% |
| 2938 | Roger Mills County | Oklahoma | 3,259 | -0.9% |
| 2939 | Emmons County | North Dakota | 3,215 | -0.1% |
| 2940 | Donley County | Texas | 3,213 | -0.2% |
| 2941 | Foster County | North Dakota | 3,212 | -1.9% |
| 2942 | Sutton County | Texas | 3,203 | -1.3% |
| 2943 | Shackelford County | Texas | 3,197 | 0.1% |
| 2944 | Knox County | Texas | 3,192 | -1.8% |
| 2945 | Harper County | Oklahoma | 3,172 | -0.8% |
| 2946 | Reagan County | Texas | 3,166 | 0.6% |
| 2947 | Glascock County | Georgia | 3,141 | 2.9% |
| 2948 | Upton County | Texas | 3,131 | 0.7% |
| 2949 | Traverse County | Minnesota | 3,130 | -0.7% |
| 2950 | Kinney County | Texas | 3,128 | 0.1% |
3144 ranked entries.