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 |
|---|---|---|---|---|
| 951 | Elko County | Nevada | 54,815 | 0.2% |
| 952 | Watauga County | North Carolina | 54,786 | -0.2% |
| 953 | Pike County | Kentucky | 54,721 | -1.2% |
| 954 | Seneca County | Ohio | 54,522 | -0.3% |
| 955 | Worcester County | Maryland | 54,459 | 0.1% |
| 956 | Queen Anne's County | Maryland | 54,448 | 1.4% |
| 957 | Pulaski County | Missouri | 54,442 | 1.0% |
| 958 | Bonner County | Idaho | 54,420 | 1.4% |
| 959 | Eagle County | Colorado | 54,291 | -0.6% |
| 960 | Jackson County | Alabama | 54,281 | 0.6% |
| 961 | Whiteside County | Illinois | 54,121 | -0.6% |
| 962 | Columbia County | Oregon | 54,091 | 0.2% |
| 963 | Grundy County | Illinois | 54,052 | 0.6% |
| 964 | Washington County | Oklahoma | 54,037 | 0.3% |
| 964 | Kerr County | Texas | 54,037 | 0.0% |
| 966 | Calumet County | Wisconsin | 53,982 | 0.4% |
| 967 | Washington County | Virginia | 53,898 | -0.4% |
| 968 | Gila County | Arizona | 53,801 | -0.6% |
| 969 | Atascosa County | Texas | 53,590 | 1.2% |
| 970 | Boone County | Illinois | 53,568 | 0.1% |
| 971 | Polk County | Texas | 53,434 | -0.1% |
| 972 | Saline County | Kansas | 53,377 | 0.1% |
| 973 | Cherokee County | Texas | 53,337 | 0.3% |
| 974 | Kendall County | Texas | 53,289 | 2.5% |
| 975 | Tuolumne County | California | 53,160 | -1.9% |
| 976 | Carroll County | New Hampshire | 52,784 | 0.4% |
| 977 | Tuscola County | Michigan | 52,680 | -0.3% |
| 978 | Franklin County | Kentucky | 52,649 | 0.5% |
| 979 | Ashland County | Ohio | 52,523 | 0.2% |
| 980 | Jackson County | Illinois | 52,501 | -0.3% |
| 981 | Grant County | Wisconsin | 52,446 | 0.1% |
| 982 | Fulton County | New York | 52,216 | 0.1% |
| 983 | Bryan County | Georgia | 52,062 | 1.9% |
| 984 | Oktibbeha County | Mississippi | 51,896 | 0.3% |
| 985 | Gibson County | Tennessee | 51,779 | 0.3% |
| 986 | Wayne County | Pennsylvania | 51,703 | 0.7% |
| 987 | Cass County | Michigan | 51,677 | 0.3% |
| 988 | Newaygo County | Michigan | 51,622 | 0.5% |
| 989 | Somerset County | Maine | 51,620 | 0.3% |
| 990 | Dearborn County | Indiana | 51,609 | -0.2% |
| 991 | Duplin County | North Carolina | 51,571 | 1.1% |
| 992 | Darke County | Ohio | 51,520 | 0.1% |
| 993 | Lamar County | Texas | 51,503 | 0.3% |
| 994 | Waupaca County | Wisconsin | 51,461 | 0.1% |
| 995 | Ogle County | Illinois | 51,399 | 0.2% |
| 996 | Bryan County | Oklahoma | 51,367 | 1.8% |
| 997 | Shelby County | Kentucky | 51,243 | 1.5% |
| 998 | Franklin County | Vermont | 51,177 | 0.1% |
| 999 | Buffalo County | Nebraska | 51,172 | 0.1% |
| 1000 | Bingham County | Idaho | 51,153 | 0.4% |
3144 ranked entries.