• Vermont Republic (also known as the Republic of New Connecticut), 1791
• Republic of Texas (disputed with Mexico), … See more

• Louisiana Purchase, 1803, from France, for $15,000,000
• Florida Purchase (or the Spanish Cession), 1819 (effective 1821), from Spain, for $5,000,000; included: East Florida, West Florida, and Sabine Free State or … See more

• Republic of West Florida Annexation; seceded from Spain, 1810; disputed with Spain until 1821
• Pembina Region, formerly part of Rupert's Land and the Red River Colony; (often referred to as the British Cession of … See more

• Black Hawk Purchase; $640,000; purchased 1832; Michigan Territory (eventually Iowa)
• California Indian Reservations and Cessions; 1851–52; unratified treaties; California… See more

The following are state cessions made during the building of the U.S.
• The Delaware Wedge, dispute with Pennsylvania settled in 1921; now a part of the state of Delaware.
• Washington, D.C.; to the Federa… See more

The following is a list of the 31 U.S. territories that have become states, in the order of the date organized. (All were considered incorporated.)
• Northwest Territory (1787–1803), became the state of … See more

The following are land grants, cessions, defined districts (official or otherwise) or named settlements made within an area that was already part of a U.S. state or territory that did not involve international treaties or … See more