Columbia County Courthouse, County courthouse in Lake City, Florida.

Columbia County Courthouse is a Classical Revival building at 173 NE Hernando Avenue in Lake City, designed by Frank Pierce Milburn and completed in 1905. A dome and cupola crown the roof; both were removed before 1989 and restored in 2003 during a renovation and expansion. The building is a contributing property in the Lake City Historic Commercial District.

Built in 1905 to the design of architect Frank Pierce Milburn in the Classical Revival style, the courthouse originally carried a dome and cupola. These were removed before 1989, the year the building was listed in A Guide to Florida's Historic Architecture, and restored in 2003 during a major renovation and expansion. It is a contributing property in the Lake City Historic Commercial District.

The courthouse is a contributing property in the Lake City Historic Commercial District, a status tied to its 1905 fabric and its place among the surrounding downtown buildings. Its name comes from Columbia County, whose courts it has housed since completion. The 2003 renovation added space while restoring the dome and cupola removed before 1989.

The courthouse stands at 173 NE Hernando Avenue, within the Lake City Historic Commercial District, so it can be reached on foot from the surrounding downtown blocks. The dome and cupola removed before 1989 were restored in 2003, so look up at the roofline when approaching. Court business follows county security screening; check current hours before visiting.

The courthouse uses an electronic filing system that allows attorneys to submit documents across all divisions digitally. This system has been in place since 2013 and continues to streamline court operations.