| Order | U.S. State | Abbreviation | Date Became a State | Capital City | Largest City | Population (Millions) |
|---|---|---|---|---|---|---|
| 1. | Delaware | DE | December 7, 1787 | Dover | Wilmington | 1.1 |
| 2. | Pennsylvania | PA | December 12, 1787 | Harrisburg | Philadelphia | 13.1 |
| 3. | New Jersey | NJ | December 18, 1787 | Trenton | Newark | 9.5 |
| 4. | Georgia | GA | January 2, 1788 | Atlanta | Atlanta | 11.2 |
| 5. | Connecticut | CT | January 9, 1788 | Hartford | Bridgeport | 3.7 |
| 6. | Massachusetts | MA | February 6, 1788 | Boston | Boston | 7.1 |
| 7. | Maryland | MD | April 28, 1788 | Annapolis | Baltimore | 6.3 |
| 8. | South Carolina | SC | May 23, 1788 | Columbia | Charleston | 5.5 |
| 9. | New Hampshire | NH | June 21, 1788 | Concord | Manchester | 1.4 |
| 10. | Virginia | VA | June 25, 1788 | Richmond | Virginia Beach | 8.8 |
| 11. | New York | NY | July 26, 1788 | Albany | New York | 19.9 |
| 12. | North Carolina | NC | November 21, 1789 | Raleigh | Charlotte | 11.0 |
| 13. | Rhode Island | RI | May 29, 1790 | Providence | Providence | 1.1 |
| 14. | Vermont | VT | March 4, 1791 | Montpelier | Burlington | 0.6 |
| 15. | Kentucky | KY | June 1, 1792 | Frankfort | Louisville | 4.6 |
| 16. | Tennessee | TN | June 1, 1796 | Nashville | Nashville | 7.2 |
| 17. | Ohio | OH | March 1, 1803 | Columbus | Columbus | 11.9 |
| 18. | Louisiana | LA | April 30, 1812 | Baton Rouge | New Orleans | 4.6 |
| 19. | Indiana | IN | December 11, 1816 | Indianapolis | Indianapolis | 6.9 |
| 20. | Mississippi | MS | December 10, 1817 | Jackson | Jackson | 2.9 |
| 21. | Ilinois | IL | December 3, 1818 | Springfield | Chicago | 12.7 |
| 22. | Alabama | AL | December 14, 1819 | Montgomery | Huntsville | 5.2 |
| 23. | Maine | ME | March 15, 1820 | Augusta | Portland | 1.4 |
| 24. | Missouri | MO | August 10, 1821 | Jefferson City | Kansas City | 6.2 |
| 25. | Arkansas | AR | June 15, 1836 | Little Rock | Little Rock | 3.1 |
| 26. | Michigan | MI | January 26, 1837 | Lansing | Detroit | 10.1 |
| 27. | Florida | FL | March 3, 1845 | Tallahassee | Jacksonville | 23.3 |
| 28. | Texas | TX | December 29, 1845 | Austin | Houston | 31.3 |
| 29. | Iowa | IA | December 28, 1846 | Des Moines | Des Moines | 3.2 |
| 30. | Wisconsin | WI | May 29, 1848 | Madison | Milwaukee | 6.0 |
| 31. | California | CA | September 9, 1850 | Sacramento | Los Angeles | 39.4 |
| 32. | Minnesota | MN | May 11, 1858 | St. Paul | Minneapolis | 5.8 |
| 33. | Oregon | OR | February 14, 1859 | Salem | Portland | 4.3 |
| 34. | Kansas | KS | January 29, 1861 | Topeka | Wichita | 3.0 |
| 35. | West Virginia | WV | June 20, 1863 | Charleston | Charleston | 1.8 |
| 36. | Nevada | NV | October 31, 1864 | Carson City | Las Vegas | 3.3 |
| 37. | Nebraska | NE | March 1, 1867 | Lincoln | Omaha | 2.0 |
| 38. | Colorado | CO | August 1, 1876 | Denver | Denver | 6.0 |
| 39. | North Dakota | ND | November 2, 1889 | Bismarck | Fargo | 0.8 |
| 40. | South Dakota | SD | November 2, 1889 | Pierre | Sioux Falls | 0.9 |
| 41. | Montana | MT | November 8, 1889 | Helena | Billings | 1.1 |
| 42. | Washington | WA | November 11, 1889 | Olympia | Seattle | 8.0 |
| 43. | Idaho | ID | July 3, 1890 | Boise | Boise | 2.0 |
| 44. | Wyoming | WY | July 10, 1890 | Cheyenne | Cheyenne | 0.6 |
| 45. | Utah | UT | January 4, 1896 | Salt Lake City | Salt Lake City | 3.5 |
| 46. | Oklahoma | OK | November 16, 1907 | Oklahoma City | Oklahoma City | 4.1 |
| 47. | New Mexico | NM | January 6, 1912 | Santa Fe | Albuquerque | 2.1 |
| 48. | Arizona | AZ | February 14, 1912 | Phoenix | Phoenix | 7.6 |
| 49. | Alaska | AK | January 3, 1959 | Juneau | Anchorage | 0.7 |
| 50. | Hawaii | HI | August 21, 1959 | Honolulu | Honolulu | 1.4 |