Columbiana is a city in Shelby County, Alabama and is the county seat of Shelby County.Columbiana, originally called Columbia, was selected as the county seat of Shelby County in 1826 over rivals Calera and Montevallo. An act of the Alabama Legislature officially changed the name of Shelby County’s county seat to Columbiana on January 13, 1832. Columbiana was incorporated on December 5, 1837 with corporate limits one-quarter of a mile in each direction from the public square. 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 holds the annual Liberty Day celebration on the last weekend in June, which was first held in 1986 to honor the 100th anniversary of the Statue of Liberty.