The minor district (king amphoe) Pak Chom was created on 1 September 1967, when the three tambons, Pak Chom, Hat Khamphi, and Chiang Klom, were split off from Chiang Khan district.
The minor district (king amphoe) Pak Chom was established on 1 September 1967, when the three tambons, Pak Chom, Hat Khamphi, and Chiang Klom, were separated from Chiang Khan district.