Tambon Ku Rae was separated from Thung Song district and made the minor district (king amphoe) Ku Rae in 1906. When the office was moved to Tambon Tha Yang in 1909, the minor district was renamed following the central tambon name.
Tambon Ku Rae was separated from Thung Song district and became a minor administrative unit called Ku Rae in 1906. Subsequently, when the administration office moved to Tambon Tha Yang in 1909, the smaller district took on the same name as its parent tambon.