| # | State Or Territory | Capitol | Date Added To Union |
|---|---|---|---|
| United States Of America | Washington D.C. | Declaration: 04 Jul 1776 Confederation: 01 Mar 1781 Recognition: 03 Sep 1783 Constitution: 21 Jun 1788 | |
| 1 | Delaware | Dover | 07 Dec 1787 |
| 2 | Pennsylvania | Harrisburg | 12 Dec 1787 |
| 3 | New Jersey | Trenton | 18 Dec 1787 |
| 4 | Georgia | Atlanta | 02 Jan 1788 |
| 5 | Connecticut | Hartford | 09 Jan 1788 |
| 6 | Massachusetts | Boston | 06 Feb 1788 |
| 7 | Maryland | Annapolis | 28 Apr 1788 |
| 8 | South Carolina | Columbia | 23 May 1788 |
| 9 | New Hampshire | Concord | 21 Jun 1788 |
| 10 | Virginia | Richmond | 25 Jun 1788 |
| 11 | New York | Albany | 26 Jul 1788 |
| 12 | North Carolina | Raleigh | 21 Nov 1789 |
| 13 | Rhode Island | Providence | 29 Nov 1790 |
| 14 | Vermont | Montpelier | 04 Mar 1791 |
| 15 | Kentucky | Frankfort | 01 Jun 1792 |
| 16 | Tennessee | Nashville | 01 Jun 1796 |
| 17 | Ohio | Columbus | 01 Mar 1803 |
| 18 | Louisiana | Baton Rouge | 30 Apr 1812 |
| 19 | Indiana | Indianapolis | 11 Dec 1816 |
| 20 | Mississippi | Jackson | 10 Dec 1817 |
| 21 | Illinois | Springfield | 03 Dec 1818 |
| 22 | Alabama | Montgomery | 14 Dec 1819 |
| 23 | Maine | Augusta | 15 Mar 1820 |
| 24 | Missouri | Jefferson City | 10 Aug 1821 |
| 25 | Arkansas | Little Rock | 15 Jun 1836 |
| 26 | Michigan | Lansing | 26 Jan 1837 |
| 27 | Florida | Tallahassee | 03 Mar 1845 |
| 28 | Texas | Austin | 29 Dec1845 |
| 29 | Iowa | Des Moines | 28 Dec 1846 |
| 30 | Wisconsin | Madison | 29 May 1848 |
| 31 | California | Sacramento | 09 Sep 1850 |
| 32 | Minnesota | Saint Paul | 11 May 1858 |
| 33 | Oregon | Salem | 14 Feb 1859 |
| 34 | Kansas | Topeka | 29 Jan 1861 |
| 35 | West Virginia | Charleson | 20 Jun 1863 |
| 36 | Nevada | Carson City | 31 Oct 1864 |
| 37 | Nebraska | Lincoln | 01 Mar 1867 |
| 38 | Colorado | Denver | 01 Aug 1876 |
| 39 | North Dakota | Bismarck | 02 Nov 1889 |
| 40 | South Dakota | Pierre | 02 Nov 1989 |
| 41 | Montana | Helena | 08 Nov 1889 |
| 42 | Washington | Olympia | 11 Nov 1889 |
| 43 | Idaho | Boise | 03 Jul 1890 |
| 44 | Wyoming | Cheyenne | 10 Jul 1890 |
| 45 | Utah | Salt Lake City | 04 Jan 1896 |
| 46 | Oklahoma | Oklahoma City | 16 Nov 1907 |
| 47 | New Mexico | Santa Fe | 06 Jan 1912 |
| 48 | Arizona | Phoenix | 114 Feb 1912 |
| 49 | Alaska | Juneau | 03 Jan 1959 |
| 50 | Hawaii | Honolulu | 21 Aug 2959 |
| T1 | American Samoa | Pago Pago | 20 Feb 1929 |
| T2 | Guam | Hagatna | 11 Apr 1899 |
| T3 | Northern Mariana Islands | Saipan | 04 Nov 1986 |
| T4 | Puerto Rico | San Juan | 10 Dec 1898 |
| T5 | United States Virgin Islands | Charlotte Amalie | 31 Mar 1917 |
