The Spanish continued to dispute the annexation of the western parts of its West Florida colony, but their power in the region was too weak to do anything about it, since it was facing concurrently the
wars of independence of colonies throughout the
Spanish Empire. They continued administering the remainder of the colony (between the Perdido and Suwannee Rivers) from the capital at Pensacola. On February 22, 1819, Spain and the United States signed the
Adams-Onís Treaty. In this treaty, Spain ceded both West and East Florida to the United States in exchange for compensation and the renunciation of American claims to
Texas. Following ratification by Spain on October 24, 1820, and the United States on February 19, 1821, the treaty took effect, thereby establishing the current boundaries. As a result, the U.S. military took over and governed both Floridas with
Andrew Jackson serving as governor. The United States soon organized the
Florida Territory on March 30, 1822, by combining East Florida and the rump West Florida east of the Perdido River and establishing a territorial government. It was then admitted to the Union as a state on March 3, 1845. West Florida had an effect on choosing the location of Florida's current capital. At first, the
Legislative Council of the Territory of Florida determined to rotate between the historic capitals of Pensacola and St. Augustine. The first legislative session was held at Pensacola on July 22, 1822; this required delegates from St. Augustine to travel 59 days by sea to attend. To get to the second session in St. Augustine, Pensacola members traveled 28 days over land. During this session, the council decided future meetings should be held at a half-way point to reduce the distance. Eventually,
Tallahassee, site of an 18th-century
Apalachee settlement, was selected as the midpoint between the former capitals of East and West Florida. The portions of West Florida now located in Louisiana are known as the
Florida Parishes. The Republic of West Florida Historical Museum is located in
Jackson, Louisiana, run by the Republic of West Florida Historical Association. In 1991, the
lineage society "The Sons & Daughters of the Province & Republic of West Florida 1763–1810" was founded for the descendants of settlers of the period. Its objective included to "collect and preserve records, documents and relics pertaining to the history and genealogy of West Florida prior to December 7, 1810". In 1993, the
Louisiana State Legislature renamed
Interstate 12, the full length of which is contained in the Florida Parishes, as the "Republic of West Florida Parkway". In 1998, Leila Lee Roberts, a great-granddaughter of Fulwar Skipwith, donated the original copy of the constitution of the West Florida Republic and the supporting papers to the
Louisiana State Archives in Baton Rouge.
Southeastern Louisiana University in
Hammond also holds an archival collection of documents from British West Florida and the Republic of West Florida, some of them dating back to 1764. ==Governors==