These are historic regions of the United States, meaning regions that were legal entities in the past, or which the average modern American would no longer immediately recognize as a regional description.
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The Thirteen Colonies
Colonial districts other than the original thirteen
Colonies proposed but unrealized or unrecognized
See also: United States territorial acquisitions, Manifest Destiny
The following are land grants, cessions, purchases, defined districts (official or otherwise) or named settlements made within an area that was already part of the original 13 colonies or a state of the Union or U.S. territory, including major land acquisitions (of varying degrees of legality) from Native Americans that did not involve international treaties or state cessions.
The following is a list of organized U.S. territories that have become states, in the order of the date organized.
