Organized incorporated territories of the United States

As a historical territories on the floor of the United States, those areas are designated by the United States throughout its history through land purchase ( Louisiana Purchase, Florida Purchase, Alaska Purchase, Gadsden Purchase ), war ( against Mexico) or in a partition treaty ( Oregon compromise ) were recovered and are now among individual states.

The territories were added gradually in the form of individual states in the Union. The boundaries of the territories do not always coincide with the later formed from them states. Frequently boundary corrections have been made. Also often include the states that bear the name of a former territory, only a part of the original (Example Oregon Territory and the State of Oregon ).

List of territories

• Northwest Territory (1789-1803), later Ohio
• Southwest Territory (1790-1796), later Tennessee
• Mississippi Territory (1798-1817), later Mississippi and Alabama
• Indiana Territory (1800-1816), later Indiana, Illinois, Wisconsin, Michigan and Minnesota
• Orleans Territory (1804-1812), and later Louisiana
• Michigan Territory (1805-1837), later Michigan, Minnesota, Wisconsin, Iowa, South Dakota and North Dakota
• Louisiana Territory (1805-1812), renamed the Missouri Territory (1812-1821)
• Illinois Territory (1809-1818), later Illinois, Michigan, Minnesota and Wisconsin
• Alabama Territory (1817-1819), later Alabama
• Arkansas Territory (1819-1836), later Arkansas and Oklahoma
• Florida Territory (1822-1845), later Florida
• Wisconsin Territory (1836-1848), and later Minnesota, Wisconsin, Iowa, North Dakota and South Dakota
• Iowa Territory (1838-1846), later Iowa, Minnesota, South Dakota and North Dakota
• Oregon Territory (1848-1859), and later Oregon, Washington, Idaho, Montana, and Wyoming
• Minnesota Territory (1849-1858), and later Minnesota, Wisconsin, North Dakota and South Dakota
• New Mexico Territory (1850-1912), later New Mexico, Arizona, Nevada and Colorado
• Utah Territory (1850-1896), later Utah, Nevada, Colorado and Wyoming
• Washington Territory (1853-1889), and later Washington, Idaho, Montana and Colorado
• Kansas Territory (1854-1861), later Kansas and Colorado
• Nebraska Territory (1854-1867), later Nebraska, Colorado, Montana, South Dakota and North Dakota
• Jefferson Territory (1859-1861), later Colorado and Wyoming, but not formally recognized
• Colorado Territory (1861-1876), later Colorado
• Nevada Territory (1861-1864), later Nevada
• Dakota Territory (1861-1889), later North Dakota and South Dakota
• Arizona Territory (1863-1912), and later Arizona and New Mexico
• Idaho Territory (1863-1890), later Idaho, Wyoming and Montana
• Montana Territory (1864-1889), later Montana
• Wyoming Territory (1868-1890), later Wyoming
• Oklahoma Territory (1890-1907), previously part of Indian Territory, later Oklahoma
• Hawaii Territory (1898-1959), and later Hawaii
• Alaska Territory (1912-1959), later Alaska

Miscellaneous

• During the American Civil War, there were ( at least nominally ) announced that the Southern states associated Arizona Territory (1861-1865 ), the Arizona and New Mexico, along an east - west line (instead of the present-day north-south line).
• Of the current 50 U.S. states were formerly part of a 31 or more territories. The following countries were never part of a territory: the Thirteen Colonies, Kentucky and West Virginia ( both had split off from Virginia), Maine ( elimination of Massachusetts ), California (formed as a state from the territories ceded by Mexico), Vermont and Texas (both had formed as independent republics, and were later joined the Union ).