With the founding of the United States, the
thirteen original colonies became the first thirteen states. The last states to be added to the US were
Alaska and
Hawaii in 1959. The following table lists each state with the date it entered the union.
States and Their Dates of Admission to the Union
| | State | Date Admitted to the Union |
| 1 | Delaware | Dec. 7, 1787 |
| 2 | Pennsylvania | Dec. 12, 1787 |
| 3 | New Jersey | Dec. 18, 1787 |
| 4 | Georgia | Jan. 2, 1788 |
| 5 | Connecticut | Jan. 9, 1788 |
| 6 | Massachusetts | Feb. 6, 1788 |
| 7 | Maryland | April 28, 1788 |
| 8 | South Carolina | May 23, 1788 |
| 9 | New Hampshire | June 21, 1788 |
| 10 | Virginia | June 25, 1788 |
| 11 | New York | July 26, 1788 |
| 12 | North Carolina | Nov. 21, 1789 |
| 13 | Rhode Island | May 29, 1790 |
| 14 | Vermont | March 4, 1791 |
| 15 | Kentucky | June 1,1792 |
| 16 | Tennessee | June 1, 1796 |
| 17 | Ohio | March 1, 1803 |
| 18 | Louisiana | April 30, 1812 |
| 19 | Indiana | Dec.11, 1816 |
| 20 | Mississippi | Dec.10, 1817 |
| 21 | Illinois | Dec.3, 1818 |
| 22 | Alabama | Dec.14, 1819 |
| 23 | Maine | March 15, 1820 |
| 24 | Missouri | Aug. 10, 1821 |
| 25 | Arkansas | June 15, 1836 |
| 26 | Michigan | Jan. 26, 1837 |
| 27 | Florida | March 3, 1845 |
| 28 | Texas | Dec.29, 1845 |
| 29 | Iowa | Dec.28, 1846 |
| 30 | Wisconsin | May 26, 1848 |
| 31 | California | Sept. 9, 1850 |
| 32 | Minnesota | May 11, 1858 |
| 33 | Oregon | Feb. 14, 1859 |
| 34 | Kansas | Jan. 29, 1861 |
| 35 | West Virginia | June 20, 1863 |
| 36 | Nevada | October 31, 1864 |
| 37 | Nebraska | March 1, 1867 |
| 38 | Colorado | Aug. 1, 1876 |
| 39 | North Dakota | Nov. 2, 1889 |
| 40 | South Dakota | Nov. 2, 1889 |
| 41 | Montana | Nov. 8, 1889 |
| 42 | Washington | Nov. 11, 1889 |
| 43 | Idaho | July 3, 1890 |
| 44 | Wyoming | July 10, 1890 |
| 45 | Utah | Jan. 4, 1896 |
| 46 | Oklahoma | Nov. 16, 1907 |
| 47 | New Mexico | Jan. 6, 1912 |
| 48 | Arizona | Feb. 14, 1912 |
| 49 | Alaska | Jan. 3, 1959 |
| 50 | Hawaii | Aug. 21, 1959 |
