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is a city in Shelby County, Alabama, United States. At the 2000 census the population was 3,316. The city is the county seat of Shelby County.
Columbiana was first called Columbia. On January 13, 1832, the Alabama Legislature changed the name to Columbiana. The city was incorporated in 1837. An iron foundry was located in Columbiana before the Civil War, and during the Civil War, Mr. CB Churchill operated a foundry for the Confederacy that was burned in 1865. Today, Columbiana is home to the Shelby County Board of Education , the Shelby County Sheriff's Office , the Shelby County Jail, and Harrison Regional Library ,which is the main office for the Shelby County Library System. Columbiana also holds the annual Liberty Day celebration, which was first held in 1986 to honor the 100th anniversary of the Statue of Liberty. The current mayor is Allan Lowe.