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 |
|---|---|---|---|---|
| 801 | Montcalm County | Michigan | 69,406 | 0.5% |
| 802 | Crow Wing County | Minnesota | 69,132 | 0.7% |
| 803 | Hamblen County | Tennessee | 68,843 | 1.0% |
| 804 | Stanly County | North Carolina | 68,830 | 1.9% |
| 805 | Ward County | North Dakota | 68,233 | 0.1% |
| 806 | McKinley County | New Mexico | 68,119 | -0.7% |
| 807 | Marquette County | Michigan | 68,064 | 0.4% |
| 808 | St. Francois County | Missouri | 67,809 | 0.5% |
| 809 | Lake County | California | 67,772 | -0.2% |
| 810 | Clay County | Minnesota | 67,734 | 0.6% |
| 811 | Shiawassee County | Michigan | 67,681 | -0.2% |
| 812 | Chippewa County | Wisconsin | 67,614 | 0.5% |
| 813 | McCracken County | Kentucky | 67,553 | -0.3% |
| 814 | Lamar County | Mississippi | 67,403 | 0.7% |
| 815 | Pulaski County | Kentucky | 67,384 | 0.6% |
| 816 | Williamson County | Illinois | 67,225 | 0.2% |
| 817 | Iron County | Utah | 67,141 | 2.4% |
| 818 | Madison County | New York | 67,120 | -0.1% |
| 819 | Allegany County | Maryland | 66,848 | -0.2% |
| 820 | Iberia Parish | Louisiana | 66,846 | -1.1% |
| 821 | Warrick County | Indiana | 66,803 | 0.7% |
| 822 | Muskogee County | Oklahoma | 66,708 | -0.1% |
| 823 | Lincoln County | Missouri | 66,676 | 1.4% |
| 824 | Sauk County | Wisconsin | 66,652 | 0.1% |
| 825 | Aroostook County | Maine | 66,609 | -0.5% |
| 826 | Ionia County | Michigan | 66,557 | 0.4% |
| 827 | Grant County | Indiana | 66,524 | 0.4% |
| 828 | Jones County | Mississippi | 66,496 | 0.6% |
| 829 | Starr County | Texas | 66,319 | -0.1% |
| 830 | Cumberland County | Tennessee | 66,300 | 1.0% |
| 831 | Salem County | New Jersey | 66,280 | 0.5% |
| 832 | Wilkes County | North Carolina | 66,233 | 0.0% |
| 833 | Columbia County | Pennsylvania | 66,193 | 0.3% |
| 834 | Wayne County | Indiana | 66,169 | -0.3% |
| 835 | Van Zandt County | Texas | 66,130 | 1.3% |
| 836 | Nacogdoches County | Texas | 66,035 | 0.1% |
| 837 | Georgetown County | South Carolina | 65,912 | -0.3% |
| 838 | Carbon County | Pennsylvania | 65,868 | 0.2% |
| 839 | Rutherford County | North Carolina | 65,745 | 0.3% |
| 840 | Box Elder County | Utah | 65,320 | 2.1% |
| 841 | Belknap County | New Hampshire | 65,147 | 0.0% |
| 842 | Walker County | Alabama | 65,140 | 0.0% |
| 843 | Marion County | Ohio | 65,115 | 0.4% |
| 844 | Lyon County | Nevada | 65,088 | 2.1% |
| 845 | Warren County | New York | 65,020 | -0.4% |
| 846 | Pope County | Arkansas | 64,976 | 0.5% |
| 847 | Isabella County | Michigan | 64,691 | -0.3% |
| 848 | Tehama County | California | 64,665 | -0.2% |
| 849 | Apache County | Arizona | 64,445 | -0.4% |
| 850 | Belmont County | Ohio | 64,434 | -0.5% |
3144 ranked entries.