A table of the dates of ratification of the Constitution and various amendments.
| # | State (# = order of entry under the Constitution | Date of Entry | Constitution proposed Sep. 28, 1787 |
Bill of Rights proposed Sep. 25, 1789 |
11th Ratified proposed Mar. 4, 1794 |
12th Ratified proposed Dec. 9, 1803 |
13th Ratified proposed May 1810 |
27th Ratified proposed Sep. 25, 1789 |
Secession |
| 1. | Delaware | Dec. 7, 1787 | Dec. 7, 1787 | Jan. 28, 1790 | Jan. 23, 1795 | rej. 1/18/04 | Feb. 2, 1811 | Jan. 28, 1790 | |
| 2. | Pennsylvania | Dec. 12 1787 | Dec. 12, 1787 | Mar. 10, 1790 | no action | Jan. 5, 1804 | Feb. 6, 1811 | ||
| 3. | New Jersey | Dec. 18, 1787 | Dec. 18, 1787 | Nov. 20, 1789 | no action | Feb. 22, 1804 | Feb. 13, 1811 | May 7, 1992 | |
| 4. | Georgia | Jan. 2, 1788 | Jan. 2, 1788 | Mar. 18, 1939 | Nov. 29, 1794 | May 19, 1804 | Dec. 13, 1811 | Feb. 2, 1988 | Jan. 19, 1861 |
| 5. | Connecticut | Jan. 9, 1788 | Jan. 9, 1788 | Apr. 19, 1939 | May 8, 1794 | rej. 5/10/14 | May 13, 1987 | ||
| 6. | Massachusetts | Feb. 6, 1788 | Feb. 6, 1788 | Mar. 2, 1939 | June 26, 1794 | rej. 2/3/04 | Feb. 27, 1812 | ||
| 7. | Maryland | Apr. 28, 1788 | Apr. 28, 1788 | Dec. 19, 1789 | Dec. 26, 1794 | Dec. 24, 1803 | Dec. 25, 1810 | Dec. 19, 1789 | |
| 8. | South Carolina | May 23, 1788 | May 23, 1788 | Jan 19, 1790 | Dec. 4, 1797 | May 15, 1804 | Jan. 19, 1790 | Dec. 20, 1860 | |
| 9. | New Hampshire | Jun. 21, 1788 | June 21, 1788 | Jan. 25, 1790 | June 16, 1794 | June 15, 1804 | Dec. 10, 1812 | Mar. 7, 1985 | |
| 10. | Virginia | Jun. 26, 1788 | June 25, 1788 | Dec. 15, 1791 | Nov. 18, 1794 | Feb. 3, 1804 | Mar. 12, 1819 | Dec. 15, 1791 | Apr. 17, 1861 |
| 11. | New York | Jul. 26, 1788 | July 26, 1788 | Feb. 24, 1790 | Mar. 27, 1794 | Feb. 10, 1804 | |||
| 12. | North Carolina | Nov. 21, 1788 | Nov. 21, 1789 | Dec. 22, 1789 | Feb. 7, 1795 declared 1/8/98 |
Dec. 21, 1803 | Dec. 23, 1811 | Dec. 22, 1789 | May 20, 1861 |
| 13. | Rhode Island | May 29, 1790 | May 29, 1790 | Jun. 7, 1790 | Mar. 31, 1794 | Mar. 12, 1804 | Jun. 7, 1790 | ||
| 14. | Vermont | Mar. 4, 1791 | Jan. 10, 1791 | Nov. 3, 1791 | Nov. 9, 1794 | Jan. 30, 1804 | Oct. 24, 1811 | Nov. 3, 1791 | |
| 15. | Kentucky | Jun. 1, 1791 | Dec. 7, 1794 | Dec. 27, 1803 | Jan. 31, 1811 | ||||
| 16. | Tennessee | Jun. 1, 1796 | July 27, 1804 | Nov. 21, 1811 | May 23, 1985 | Jun. 8, 1861 | |||
| 17. | Ohio | Mar. 1, 1803 | Dec. 30, 1803 | Jan. 31, 1811 | May 6, 1873 | ||||
| 18. | Louisiana | Apr. 30, 1812 | July 7, 1988 | Jan. 26, 1861 | |||||
| 19. | Indiana | Dec. 11, 1816 | Feb. 24, 1986 | ||||||
| 20. | Mississippi | Dec. 10, 1817 | Jan. 9, 1861 | ||||||
| 21. | Illinois | Dec. 3, 1818 | May 12, 1992 | ||||||
| 22. | Alabama | Dec. 14, 1819 | May 5, 1992 | Jan. 11, 1861 | |||||
| 23. | Maine | Mar. 15, 1820 | Apr. 27, 1983 | ||||||
| 24. | Missouri | Aug. 10, 1821 | May 5, 1992 | ||||||
| 25. | Arkansas | Jun. 15, 1836 | Mar. 6, 1987 | May 6, 1861 | |||||
| 26. | Michigan | Jan. 26,1837 | May 7, 1992 | ||||||
| 27 | Florida | Mar. 3, 1845 | May 31, 1990 | Jan. 10, 1961 | |||||
| 28. | Texas | Dec. 29, 1845 | May 25, 1989 | Feb. 1, 1861 | |||||
| 29. | Iowa | Dec. 28, 1846 | Feb. 9, 1989 | ||||||
| 30. | Wisconsin | May 29, 1848 | Jul. 15, 1987 | ||||||
| 31. | California | Sep. 9, 1850 | |||||||
| 32. | Minnesota | May 11, 1858 | May 22, 1989 | ||||||
| 33. | Oregon | Feb. 14, 1859 | May 19, 1989 | ||||||
| 34. | Kansas | Jan. 29, 1861 | Apr. 5, 1990 | ||||||
| 35. | West Virginia | Jun. 20, 1863 | Mar. 10, 1988 | ||||||
| 36. | Nevada | Oct. 31, 1864 | Apr. 26, 1989 | ||||||
| 37. | Nebraska | Mar. 1, 1867 | |||||||
| 38. | Colorado | Aug. 1, 1876 | Apr. 22, 1984 | ||||||
| 39. | North Dakota | Nov. 2, 1889 | Mar. 25, 1991 | ||||||
| 40. | South Dakota | Nov. 2, 1889 | Feb. 21, 1985 | ||||||
| 41. | Montana | Nov. 8, 1889 | Mar. 17, 1987 | ||||||
| 42. | Washington | Nov. 11, 1889 | |||||||
| 43. | Idaho | Jul. 3, 1890 | Mar. 23, 1989 | ||||||
| 44. | Wyoming | Jul. 10, 1890 | Mar. 6, 1978 | ||||||
| 45. | Utah | Jan. 4, 1896 | Feb. 25, 1986 | ||||||
| 46. | Oklahoma | Nov. 16, 1907 | Jul. 10, 1985 | ||||||
| 47. | New Mexico | Jan. 6, 1912 | Feb. 14, 1986 | ||||||
| 48. | Arizona | Feb. 14, 1912 | Apr. 3, 1985 | ||||||
| 49. | Alaska | Jan. 3, 1959 | May 6, 1989 | ||||||
| 50 | Hawaii | Aug. 21, 1959 |