• Baekje PeriodGochang was called Moryangburi Prefecture.
• Unified Shilla PeriodGochang had a jurisdiction over Muryeong-gun under the current name.
• Goryeo DynastyGochang belonged to Gobu-gun.
• Early Joseon DynastyGochang was called Gochang Prefecture.
• Late Joseon DynastyGochang was called Gochang- gun.
• The Year 1896Gochang-eup, Heungdeok-myeon and Mujang-myeon were transferred to Jeollanam-do.
• The Year 1914Gochang was incorporated into Jeollabuk-do.
  merged into Gochang-gun (17 myeons).
• The Year 1935Gochang-gun (17→14 myeons)
  (Osan, Byeoksa and Seokgok merged with Gochang)
• The Year 1955Gochang (1 eup and 13 myeons)
  Gochang-myeon raised Gochang-myeon eup in status.