From Census thru Wikipedia
Only counts people in states/DC, sometimes counts current state's territory populations. Take with a crystal of salt
| Year | New England | Mid-Atlantic | E. N. Central | W. N. Central | South Atlantic | E. S. Central | W. S. Central | Mountain | Pacific |
| 1790 | 25.69 | 53.07 | 0 | 0 | 47.13 | 2.78 | 0 | 0 | 0 |
| 1800 | 23.55 | 51.61 | 1.04 | 0 | 43.66 | 6.41 | 0 | 0 | 0 |
| 1810 | 20.33 | 47.88 | 3.76 | 0.27 | 36.95 | 9.79 | 1.07 | 0 | 0 |
| 1820 | 17.22 | 44.39 | 8.22 | 0.69 | 31.76 | 12.52 | 1.74 | 0 | 0 |
| 1830 | 15.19 | 41.68 | 11.43 | 1.09 | 28.34 | 14.11 | 1.91 | 0 | 0 |
| 1840 | 13.09 | 37.25 | 17.13 | 2.5 | 23 | 15.09 | 2.64 | 0 | 0 |
| 1850 | 11.76 | 34.7 | 19.5 | 3.8 | 20.18 | 14.5 | 4.05 | 0.31 | 0.82 |
| 1860 | 9.97 | 31.58 | 22.03 | 6.9 | 17.06 | 12.79 | 5.56 | 0.58 | 1.63 |
| 1870 | 9.05 | 29.87 | 23.66 | 10 | 15.18 | 11.42 | 5.26 | 0.82 | 1.75 |
| 1880 | 8.12 | 28.13 | 22.7 | 12.47 | 15.39 | 11.31 | 6.75 | 1.32 | 2.33 |
| 1890 | 7.46 | 26.3 | 21.4 | 14.18 | 14.06 | 10.21 | 7.53 | 1.93 | 3.19 |
| 1900 | 7.34 | 26.14 | 20.98 | 13.58 | 13.7 | 9.9 | 8.57 | 2.2 | 3.46 |
| 1910 | 7.1 | 26.49 | 19.79 | 12.62 | 13.22 | 9.12 | 9.52 | 2.86 | 4.82 |
| 1920 | 6.98 | 26.55 | 20.26 | 11.83 | 13.2 | 8.39 | 9.66 | 3.15 | 5.54 |
| 1930 | 6.63 | 26.6 | 20.53 | 10.79 | 12.82 | 8.03 | 9.88 | 3 | 7 |
| 1940 | 6.38 | 26.38 | 20.15 | 10.23 | 13.49 | 8.16 | 9.88 | 3.14 | 7.74 |
| 1950 | 6.16 | 25.74 | 20.09 | 9.29 | 14 | 7.58 | 9.61 | 3.35 | 9.99 |
| 1960 | 5.86 | 24.71 | 20.2 | 8.58 | 14.48 | 6.72 | 9.45 | 3.82 | 11.82 |
| 1970 | 5.83 | 24.02 | 19.81 | 8.03 | 15.09 | 6.3 | 9.51 | 4.08 | 13.05 |
| 1980 | 5.45 | 21.86 | 18.4 | 7.58 | 16.31 | 6.47 | 10.48 | 5.02 | 14.04 |
| 1990 | 5.31 | 20.76 | 16.89 | 7.1 | 17.52 | 6.1 | 10.74 | 5.49 | 15.73 |
| 2000 | 4.95 | 19.62 | 16.05 | 6.84 | 18.4 | 6.05 | 11.17 | 6.46 | 16 |
| 2010 | 4.68 | 18.79 | 15.04 | 6.64 | 19.36 | 5.97 | 11.77 | 7.15 | 16.16 |
| 2020 | 4.56 | 18.34 | 14.29 | 6.52 | 19.94 | 5.85 | 12.3 | 7.52 | 16.19 |
