In this article, we rank all 50 U.S. states by their population. Population counts are sourced from the Census Bureau’s annual population estimate for July 1, 2021 (released 2022).

| Rank | State | Population (as of July 1, 2021) |
| 1 | California | 39.24 Million |
| 2 | Texas | 29.53 Million |
| 3 | Florida | 21.78 Million |
| 4 | New York | 19.84 Million |
| 5 | Pennsylvania | 12.96 Million |
| 6 | Illinois | 12.67 Million |
| 7 | Ohio | 11.78 Million |
| 8 | Georgia | 10.80 Million |
| 9 | North Carolina | 10.55 Million |
| 10 | Michigan | 10.05 Million |
| 11 | New Jersey | 9.27 Million |
| 12 | Virginia | 8.64 Million |
| 13 | Washington (state) | 7.74 Million |
| 14 | Arizona | 7.28 Million |
| 15 | Massachusetts | 6.98 Million |
| 16 | Tennessee | 6.98 Million |
| 17 | Indiana | 6.81 Million |
| 18 | Missouri | 6.17 Million |
| 19 | Maryland | 6.17 Million |
| 20 | Wisconsin | 5.90 Million |
| 21 | Colorado | 5.81 Million |
| 22 | Minnesota | 5.71 Million |
| 23 | South Carolina | 5.19 Million |
| 24 | Alabama | 5.04 Million |
| 25 | Louisiana | 4.62 Million |
| 26 | Kentucky | 4.51 Million |
| 27 | Oregon | 4.25 Million |
| 28 | Oklahoma | 3.99 Million |
| 29 | Connecticut | 3.61 Million |
| 30 | Utah | 3.32 Million |
| 31 | Iowa | 3.19 Million |
| 32 | Nevada | 3.14 Million |
| 33 | Arkansas | 3.03 Million |
| 34 | Mississippi | 2.95 Million |
| 35 | Kansas | 2.93 Million |
| 36 | New Mexico | 2.12 Million |
| 37 | Nebraska | 1.96 Million |
| 38 | Idaho | 1.90 Million |
| 39 | West Virginia | 1.78 Million |
| 40 | Hawaii | 1.44 Million |
| 41 | New Hampshire | 1.39 Million |
| 42 | Maine | 1.37 Million |
| 43 | Rhode Island | 1.10 Million |
| 44 | Montana | 1.10 Million |
| 45 | Delaware | 1.00 Million |
| 46 | South Dakota | 895,000 |
| 47 | North Dakota | 775,000 |
| 48 | Alaska | 733,000 |
| 49 | Vermont | 646,000 |
| 50 | Wyoming | 579,000 |