| Year |
1910 | 1900 | 1890 | 1880 | 1870 | 1860 | 1850 | 1840 | 1830 | 1820 | 1810 | 1800 | 1790 | 1780 |
| Ratio |
212,877 | 194,182 | 173,901 | 151,.911 | 131,425 |
127,381 | 93,423 | 70,680 | 47,700 | 40,000 | 35,000 | 33,000 |
33,000 | 30,000 |
| Total under apportionment |
433 | 386 | 356 | 325 | 292 | 241 | 234 | 223 | 240 | 213 | 181 | 141 | 105 | 65 |
| Assigned new States |
2 | 5 | 1 | 7 | 1 | 2 | 3 | 9 | 2 | — | 5 | 1 | 1 | |
| Alabama | 10 | 9 | 9 | 8 | 8 | 6 | 7 | 7 | 5 | 3 | ||||
| Arizona | 1 | |||||||||||||
| Arkansas | 7 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 1 | |||||
| California | 11 | 8 | 7 | 6 | 4 | 3 | 2 | 2 | ||||||
| Colorado | 4 | 3 | 2 | 1 | 1 | |||||||||
| Connecticut | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 7 | 7 | 7 | 5 |
| Delaware | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Florida | 4 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | ||||||
| Georgia | 12 | 11 | 11 | 10 | 9 | 7 | 8 | 8 | 9 | 7 | 6 | 4 | 2 | 3 |
| Idaho | 2 | 1 | 1 | 1 | ||||||||||
| Illinois | 27 | 25 | 22 | 20 | 19 | 14 | 9 | 7 | 3 | 1 | 1 | |||
| Indiana | 13 | 13 | 13 | 13 | 13 | 11 | 11 | 10 | 7 | 3 | 1 | |||
| Iowa | 11 | 11 | 11 | 11 | 9 | 6 | 2 | 2 | ||||||
| Kansas | 8 | 8 | 8 | 7 | 3 | 1 | ||||||||
| Kentucky | 11 | 11 | 11 | 11 | 10 | 9 | 10 | 10 | 13 | 12 | 10 | 6 | 2 | |
| Louisiana | 8 | 7 | 6 | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 1 | |||
| Maine | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 7 | 7 | |||
| Maryland | 6 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 8 | 9 | 9 | 9 | 8 | 6 |
| Massachusetts | 16 | 14 | 13 | 12 | 11 | 10 | 11 | 10 | 12 | 13 | 13 | 17 | 14 | 8 |
| Michigan | 13 | 12 | 12 | 11 | 9 | 6 | 4 | 3 | 1 | |||||
| Minnesota | 10 | 9 | 7 | 5 | 3 | 2 | 2 | |||||||
| Mississippi | 8 | 8 | 7 | 7 | 6 | 5 | 5 | 4 | 2 | 1 | 1 | |||
| Missouri | 16 | 16 | 15 | 14 | 13 | 9 | 7 | 5 | 2 | 1 | ||||
| Montana | 2 | 1 | 1 | 1 | ||||||||||
| Nebraska | 6 | 6 | 6 | 3 | 1 | 1 | ||||||||
| Nevada | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||
| New Hampshire | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 3 |
| New Jersey | 12 | 10 | 8 | 7 | 7 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 4 |
| New Mexico | 1 | |||||||||||||
| New York | 43 | 37 | 34 | 34 | 33 | 31 | 33 | 34 | 40 | 34 | 27 | 17 | 10 | 6 |
| North Carolina | 10 | 10 | 9 | 9 | 8 | 7 | 8 | 9 | 13 | 13 | 14 | 12 | 10 | 5 |
| North Dakota | 3 | 2 | 1 | 1 | ||||||||||
| Ohio | 22 | 21 | 21 | 21 | 20 | 19 | 21 | 21 | 19 | 14 | 6 | 1 | ||
| Oklahoma | 8 | 5 | ||||||||||||
| Oregon | 3 | 2 | 2 | 1 | 1 | 1 | 1 | |||||||
| Pennsylvania | 36 | 32 | 30 | 28 | 27 | 24 | 25 | 24 | 28 | 26 | 23 | 18 | 13 | 8 |
| Rhode Island | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 |
| South Carolina | 7 | 7 | 7 | 7 | 5 | 4 | 6 | 7 | 9 | 9 | 9 | 8 | 6 | 5 |
| South Dakota | 3 | 2 | 2 | 2 | ||||||||||
| Tennessee | 10 | 10 | 10 | 10 | 10 | 8 | 10 | 11 | 13 | 9 | 6 | 3 | 1 | |
| Texas | 18 | 16 | 13 | 11 | 6 | 4 | 2 | 2 | ||||||
| Utah | 2 | 1 | 1 | |||||||||||
| Vermont | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 5 | 5 | 6 | 4 | 2 | |
| Virginia | 10 | 10 | 10 | 10 | 9 | 11 | 13 | 15 | 21 | 22 | 23 | 22 | 19 | |
| Washington | 5 | 3 | 2 | 1 | ||||||||||
| West Virginia | 6 | 5 | 4 | 4 | 3 | |||||||||
| Wisconsin | 11 | 11 | 10 | 9 | 8 | 6 | 3 | 2 | ||||||
| Wyoming | 1 | 1 | 1 | 1 |