The resident population of U.S is 328,239,523 as of July 1, 2019.
| Resident | 328,239,523 |
| Resident Plus Armed Forces Overseas | 328,475,998 |
| Civilian | 327,052,602 |
| Noninstitutionalized Civilian | 323,186,697 |
| Household | 320,155,161 |
All the data are sourced from US Census Bureau [48]. The definition of Civilian noninstitutional population: US Department of Labor.
The most populated state is California (39,512,223), and the least is Wyoming (578,759) as of July 1, 2019. The below table shows all states population in 2019 [1].
| State | Population |
| Alabama | 4,903,185 |
| Alaska | 731,545 |
| Arizona | 7,278,717 |
| Arkansas | 3,017,804 |
| California | 39,512,223 |
| Colorado | 5,758,736 |
| Connecticut | 3,565,287 |
| Delaware | 973,764 |
| District of Columbia | 705,749 |
| Florida | 21,477,737 |
| Georgia | 10,617,423 |
| Hawaii | 1,415,872 |
| Idaho | 1,787,065 |
| Illinois | 12,671,821 |
| Indiana | 6,732,219 |
| Iowa | 3,155,070 |
| Kansas | 2,913,314 |
| Kentucky | 4,467,673 |
| Louisiana | 4,648,794 |
| Maine | 1,344,212 |
| Maryland | 6,045,680 |
| Massachusetts | 6,892,503 |
| Michigan | 9,986,857 |
| Minnesota | 5,639,632 |
| Mississippi | 2,976,149 |
| Missouri | 6,137,428 |
| Montana | 1,068,778 |
| Nebraska | 1,934,408 |
| Nevada | 3,080,156 |
| New Hampshire | 1,359,711 |
| New Jersey | 8,882,190 |
| New Mexico | 2,096,829 |
| New York | 19,453,561 |
| North Carolina | 10,488,084 |
| North Dakota | 762,062 |
| Ohio | 11,689,100 |
| Oklahoma | 3,956,971 |
| Oregon | 4,217,737 |
| Pennsylvania | 12,801,989 |
| Rhode Island | 1,059,361 |
| South Carolina | 5,148,714 |
| South Dakota | 884,659 |
| Tennessee | 6,829,174 |
| Texas | 28,995,881 |
| Utah | 3,205,958 |
| Vermont | 623,989 |
| Virginia | 8,535,519 |
| Washington | 7,614,893 |
| West Virginia | 1,792,147 |
| Wisconsin | 5,822,434 |
| Wyoming | 578,759 |