It was added to the National Register of Historic Places on October 1, 1974.

The architect was Stephen Decatur Button of Philadelphia, with John R. Turner of Carlisle implementing its construction.

A large clock tower reaches about 70 feet (21 m) above ground level.

During the Battle of Gettysburg the building served as both a command post and as a hospital, for both Union and Confederate armies.

[3] The Adams County Courthouse was added to the National Register of Historic Places on October 1, 1974.