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Number of US states by year since 1776

Total number of US states*, at the end of each year, since the Declaration of Independence in 1776

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Source

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Release date

July 2020

Region

United States

Survey time period

1776 to 2020

Supplementary notes

*1787 - Delaware (Dec. 07), Pennsylvania (Dec. 12), New Jersey (Dec. 18)
1788 - Georgia (Jan. 02), Conecticut(Jan. 09), Massachusetts (Feb. 06), Maryland (Apr. 28), South Carolina (May 23), New Hampshire (Jun. 21), Virginia (Jun. 25), New York (Jul. 26)
1789 - North Carolina (Nov. 21)
1790 - Rhode Island (May 29), (also Washington D.C.)
1791 - Vermont (Mar. 04)
1792 - Kentucky (Jun. 01)
1796 - Tennessee (Jun. 01)
1803 - Ohio (Mar. 01)
1812 - Louisiana (Apr. 30)
1816 - Indiana (Dec. 11)
1817 - Mississippi (Dec. 10)
1818 - Illinois (Dec. 03)
1819 - Alabama (Dec. 14)
1820 - Maine (Mar. 15)
1821 - Missouri (Aug. 10)
1836 - Arkansas (Jun. 15)
1837 - Michigan (Jan. 26)
1845 - Florida (Mar. 03), Texas (Dec. 29)
1846 - Iowa (Dec. 28)
1848 - Wisconsin (May 29)
1850 - California (Sep. 09)
1858 - Minnesota (May 11)
1859 - Oregon (Feb. 14)
1860 - SECEDED - South Carolina (Dec. 20)
1861 - Kansas (Jan. 29)
SECEDED - Mississippi (Jan. 09), Florida (Jan. 10), Alabama (Jan. 11), Georgia (Jan. 19), Louisiana (Jan. 26), Texas (Feb. 01), Virginia (Apr. 17), Arkansas (May 06), North Carolina (May 20), Tennessee (Jun. 08)
JOINED CONFEDERACY - Alabama, Florida, Georgia, Louisiana, Mississippi & South Carolina (Feb. 08), Texas (Mar. 02), Virginia (May. 07), Arkansas (May 18), North Carolina (May 20), Tennessee (Jul. 02)
1863 - West Virginia (Jun. 20)
1864 - Nevada (Oct. 31)
1866 - READMITTED - Tennessee (Jul. 24) 1867 - Nebraska (Mar. 01)
1868 - READMITTED - Arkansas (Jun. 22), Alabama, Florida, Louisiana, North Carolina & South Carolina (Jun. 25)
1870 - READMITTED - Virginia (Jan. 26), Mississippi (Feb. 23), Texas (Mar. 30), Georgia (Jul. 15) 1876 - Colorado (Aug. 01)
1889 - North Dakota (Nov. 02), South Dakota (Nov. 02), Montana (Nov. 08), Washington (Nov. 11)
1890 - Idaho (Jul. 03), Wyoming (Jul. 10)
1896 - Utah (Jan. 04)
1907 - Oklahoma (Nov. 16)
1912 - New Mexico (Jan. 06), Arizona (Feb. 14)
1959 - Alaska (Jan. 03), Hawaii (Aug. 21)

**As of July 06, 2020.

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