[United States Senate Manual, 117th Congress]
[S. Doc. 117-1]
[Statistical Data]
[Pages 751-752]
[From the U.S. Government Publishing Office, www.gpo.gov]


[[Page 751]]
                                       [1991]
 
                                   STATES ADMITTED INTO THE UNION SINCE ADOPTION OF THE CONSTITUTION
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                                                              Population at                    Area in
               State                    Date of admission        time of       Population,     square                       Formation
                                                                admission      2020 census      miles
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Vermont............................  Mar. 4, 1791..........          85,539         643,077       9,614  Formed from a portion of the territory of the
                                                                                                          State of New York.
Kentucky...........................  June 1, 1792..........          73,677       4,505,836      40,410  Formed from a portion of the territory of the
                                                                                                          State of Virginia.
Tennessee..........................  June 1, 1796..........          77,262       6,910,840      42,144  Formed from territory ceded to the United
                                                                                                          States by North Carolina. Seceded June 8,
                                                                                                          1861. Readmitted to representation by joint
                                                                                                          resolution of July 24, 1866.
Ohio...............................  Mar. 1, 1803\1\.......          41,915      11,799,448      41,330  Formed from territory ceded to the United
                                                                                                          States by the State of Virginia.
Louisiana..........................  Apr. 30, 1812.........          76,556       4,657,757      47,752  Formed from territory ceded to the United
                                                                                                          States by France under the Treaty of Paris of
                                                                                                          Apr. 30, 1803. Seceded Jan. 26, 1861.
                                                                                                          Readmitted to representation upon ratifying
                                                                                                          the Fourteenth Amendment, July 9, 1868.
Indiana............................  Dec. 11, 1816.........          63,897       6,785,528      36,185  Formed from territory ceded to the United
                                                                                                          States by the State of Virginia.
Mississippi........................  Dec. 10, 1817.........          75,512       2,961,279      47,689  Formed from territory ceded to the United
                                                                                                          States by the States of Georgia and South
                                                                                                          Carolina. Seceded Jan. 9, 1861. Readmitted to
                                                                                                          representation by act of Feb. 23, 1870.
Illinois...........................  Dec. 3, 1818..........          34,620      12,812,508      56,345  Formed from territory ceded to the United
                                                                                                          States by the State of Virginia.
Alabama............................  Dec. 14, 1819.........         144,317       5,024,279      51,705  Formed from territory ceded to the United
                                                                                                          States by the States of South Carolina and
                                                                                                          Georgia. Seceded Jan. 11, 1861. Readmitted to
                                                                                                          representation upon ratifying the Fourteenth
                                                                                                          Amendment, July 13, 1868.
Maine..............................  Mar. 15, 1820.........         298,335       1,362,359      33,265  Formed from a portion of the territory of the
                                                                                                          State of Massachusetts.
Missouri...........................  Aug. 10, 1821.........          66,586       6,154,913      69,697  Formed from a portion of the territory ceded to
                                                                                                          the United States by France, under the name of
                                                                                                          ``Louisiana,'' by the Treaty of Paris of 1803.
Arkansas...........................  June 15, 1836.........          52,240       3,011,524      53,187  Formed from a portion of the territory ceded to
                                                                                                          the United States by France, under the name of
                                                                                                          ``Louisiana,'' by the Treaty of Paris of 1803.
                                                                                                          Seceded May 6, 1861. Readmitted to
                                                                                                          representation upon ratifying the Fourteenth
                                                                                                          Amendment, June 22, 1868.
Michigan...........................  Jan. 26, 1837.........        *200,000      10,077,331      58,527  Formed from territory ceded to the United
                                                                                                          States by the State of Virginia.
Florida............................  Mar. 3, 1845..........          54,477      21,538,187      58,664  Formed from territory ceded to the United
                                                                                                          States by Spain by Treaty of Washington of
                                                                                                          Feb. 22, 1819. Seceded Jan. 11, 1861.
                                                                                                          Readmitted to representation upon ratifying
                                                                                                          the Fourteenth Amendment, June 25, 1868.
Texas..............................  Dec. 29, 1845.........        *250,000      29,145,505     266,807  This State was originally a part of the
                                                                                                          Republic of Mexico, but by a successful revolt
                                                                                                          the people established for themselves an
                                                                                                          independent republican government, and were
                                                                                                          subsequently annexed to the United States.
                                                                                                          Seceded Feb. 1, 1861. Readmitted to
                                                                                                          representation by the act of Mar. 30, 1870.
Iowa...............................  Dec. 28, 1846.........          81,920       3,190,369      56,275  Formed from a portion of the Territory of
                                                                                                          Wisconsin, as the ``Territory of Iowa,'' June
                                                                                                          12, 1838.
Wisconsin..........................  May 29, 1848..........         210,596       5,893,718      56,153  Formed from a portion of the territory of the
                                                                                                          State of Michigan, as the ``Territory of
                                                                                                          Wisconsin,'' Apr. 20, 1836.
California.........................  Sept. 9, 1850.........         107,000      39,538,223     158,706  Formed from territory ceded to the United
                                                                                                          States by Mexico by the Treaty of Guadalupe
                                                                                                          Hidalgo of Feb. 2, 1848.
Minnesota..........................  May 11, 1858..........         150,042       5,706,494      84,402  Formed from a portion of the territory ceded to
                                                                                                          the United States by France by the Treaty of
                                                                                                          Paris of Apr. 30, 1803.

[[Page 752]]

 
Oregon.............................  Feb. 14, 1859.........          52,465       4,237,256      97,073  Formed from territory ceded to the United
                                                                                                          States by the Treaty with France of Apr. 30,
                                                                                                          1803, the Treaty with Spain of Feb. 22, 1819,
                                                                                                          and the Treaty with Great Britain of June 15,
                                                                                                          1846.
Kansas.............................  Jan. 29, 1861.........         107,206       2,937,880      82,277  Formed from territory ceded to the United
                                                                                                          States by France by the Treaty of Paris of
                                                                                                          Apr. 30, 1803, and by the State of Texas, in
                                                                                                          the settlement of her boundaries, in 1850.
West Virginia......................  June 20, 1863.........         376,683       1,793,716      24,232  Formed from a portion of the territory of the
                                                                                                          State of Virginia.
Nevada.............................  Oct. 31, 1864.........         *40,000       3,104,614     110,561  Formed from a portion of the territory ceded to
                                                                                                          the United States by Mexico by the Treaty of
                                                                                                          Guadalupe Hidalgo of Feb. 2, 1848.
Nebraska...........................  Mar. 1, 1867..........         *60,000       1,961,504      77,355  Formed from a petition of the territory ceded
                                                                                                          to the United States by France by the Treaty
                                                                                                          of Paris of Apr. 30, 1803.
Colorado...........................  Aug. 1, 1876..........        *150,000       5,773,714     104,091  Formed from portions of the territory ceded to
                                                                                                          the United States by France by the Treaty of
                                                                                                          Paris of Apr. 30, 1803 and of that ceded by
                                                                                                          Mexico by the Treaty of Guadalupe Hidalgo of
                                                                                                          Feb. 2, 1848.
South Dakota.......................  Nov. 2, 1889..........        *460,000         886,667      77,116  Formed from a portion of the territory ceded to
                                                                                                          the United States by France by the Treaty of
                                                                                                          Paris of Apr. 30, 1803.
North Dakota.......................  Nov. 2, 1889..........                         779,094      70,702      Do.
Montana............................  Nov. 8, 1889..........        *112,000       1,084,225     147,046      Do.
Washington.........................  Nov. 11, 1889.........        *273,000       7,705,281      68,139  Formed from territory ceded to the United
                                                                                                          States by France by Treaty of Paris of Apr.
                                                                                                          30, 1803. The northern boundary of the
                                                                                                          territory was settled by a treaty with Great
                                                                                                          Britain, known as the ``Oregon Treaty'' of
                                                                                                          June 15, 1846.
Idaho..............................  July 3, 1890..........          84,385       1,839,106      83,564  Formed from a portion of the territory ceded to
                                                                                                          the United States by France by the Treaty of
                                                                                                          Paris of Apr. 30, 1803.
Wyoming............................  July 10, 1890.........          60,705         576,851      97,809  Formed from a portion of the territory ceded to
                                                                                                          the United States by France by the Treaty of
                                                                                                          Paris of Apr. 30, 1803.
Utah...............................  Jan. 4, 1896..........        *241,000       3,271,616      84,899  Formed from a portion of the territory ceded to
                                                                                                          the United States by Mexico by the Treaty of
                                                                                                          Guadalupe Hidalgo of Feb. 2, 1848.
Oklahoma...........................  Nov. 16, 1907.........      *1,414,177       3,959,353      69,956  Formed by the union of Oklahoma Territory and
                                                                                                          Indian Territory.
New Mexico.........................  Jan. 6, 1912..........        *338,470       2,117,522     121,593  Formed from a portion of the territory ceded to
                                                                                                          the United States by Mexico by the Treaty of
                                                                                                          Guadalupe Hidalgo of Feb. 2, 1848.
Arizona............................  Feb. 14, 1912.........        *216,639       7,151,502     114,000  Formed from territory ceded to the United
                                                                                                          States by Mexico, part by the Treaty of
                                                                                                          Guadalupe Hidalgo of Feb. 2, 1848, and part by
                                                                                                          what is known as the ``Gadsden Purchase,''
                                                                                                          Dec. 30, 1853.
Alaska.............................  Jan. 3, 1959..........        *211,000         733,391     591,004  Formed from territory ceded to the United
                                                                                                          States by Russia by treaty of Mar. 30, 1867.
Hawaii.............................  Aug. 21, 1959.........        *595,000       1,455,271       6,471  Formed from the territory of the Republic of
                                                                                                          Hawaii, annexed to the United States by act of
                                                                                                          Congress of July 7, 1898.
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*Estimated.
\1\By Public Law 204 of the 83d Cong., approved Aug. 7, 1953 (67 Stat. 407), Congress corrected an oversight of one-and-one-half centuries and formally
  admitted the State of Ohio to the Union, setting Mar. 1, 1803, as the effective date of admission.