When were states admitted to the union?
All 13 Colonies became states in 1776 after the Declaration of Independence. The dates listed for them are the dates in which they ratified the Constitution, which was adopted Sept. 17, 1787. The remaining 37 states are listed by the date of admission to the Union and grouped by the president at the time. The dates after a president’s name show his years in office.
The 13 Colonies
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. 27, 1789
13. Rhode Island, May 29, 1790
George Washington (1789-1797)
14. Vermont, March 4, 1791
15. Kentucky, June 1, 1792
16. Tennessee, June 1, 1796
John Adams (1797-1801)
None
Thomas Jefferson (1801-1809)
17. Ohio, March 1, 1803
James Madison (1809-1817)
18. Louisiana, April 30, 1812
19. Indiana, Dec. 11, 1816
James Monroe (1817-1825)
20. Mississippi, Dec. 10, 1817
21. Illinois, Dec.3, 1818
22. Alabama, Dec. 14, 1819
23. Maine, March 15, 1820
24. Missouri, Aug. 20, 1821
John Quincy Adams (1825-1829)
None
Andrew Jackson (1829-1837)
25. Arkansas, June 15, 1836
26. Michigan, Jan. 26, 1837
Martin Van Buren (1737-1841)
None
William Henry Harrison (1841)
None
John Tyler (1841-1845)
27. Florida, March 3, 1845
James K. Polk (1845-1849)
28. Texas, Dec. 29, 1845
29. Iowa, Dec. 28, 1846
30. Wisconsin, May 29, 1848
Zachary Taylor (1849-1850)
None
Millard Fillmore (1850-1853)
31. California, Sept. 9, 1850
Franklin Pierce (1853-1857)
None
James Buchanan (1857-1861)
32 Minnesota, May 11, 1858
33. Oregon, Feb. 14, 1859
34. Kansas, Jan. 29, 1861
Abraham Lincoln (1861-1865)
35. West Virginia, June 20, 1863
36. Nevada, Oct. 31, 1864
Andrew Johnson (1865-1869)
37. Nebraska, Feb. 8, 1867
Ulysses S. Grant (1869-1877)
38. Colorado, Aug. 1, 1876
Rutherford B. Hayes (1877-1881)
None
James Garfield (1881)
None
Chester A. Arthur (1881-1885)
None
Grover Cleveland (1885-1889)
None
Benjamin Harrison (1889-1893)
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
Grover Cleveland (1893-1897)
45. Utah, Jan. 4, 1896
William McKinley (1897-1901)
None
Theodore Roosevelt (1901-1909)
46. Oklahoma, Nov. 16, 1907
William Howard Taft (1909-1913)
47. New Mexico, Jan. 6, 1912
48. Arizona, Feb. 14, 1912
Woodrow Wilson (1913-1921)
None
Warren G. Harding (1921-1923)
None
Calvin Coolidge (1923-1929)
None
Herbert Hoover (1929-1933)
None
Franklin D. Roosevelt (1933-1945)
None
Harry S. Truman (1945-1953)
None
Dwight D. Eisenhower (1953-1961)
49. Alaska, Jan. 3, 1959
50. Hawaii, Aug. 21, 1959
Source: State websites.
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