Founded by the French in 1702, Mobile is a major port city, though Childersburg claims older continuous occupation from 1540.
Kodiak was founded in 1792 by Russian trader Aleksandr Andreyevich Baranov, manager of the Russian-American Company.
Founded in 1775, Tucson has been continuously settled for over 12,000 years according to the City of Tucson's official website.
Established as a French trading post in 1686, Arkansas Post was mostly destroyed in the Civil War and is now a state park; Georgetown, founded in 1789, is the second oldest functioning city.
Renamed in 1602 by explorer Sebastián Vizcaíno, San Diego's first California mission, San Diego de Alcalá, was dedicated in 1769, along with Santa Cruz.
San Luis, established by Hispano farmers in 1851, was named after a Catholic saint.
Windsor was established in 1633 by settlers from Plymouth Colony, who built the first trading house on land bought from Native Americans.