Originally, the district included all of the islands of Surat Thani Pr...
wikipedia - 05 Mar 2022Originally, the district included all of the islands of Surat Thani Province. The islands Ko Pha-ngan and Ko Tao were split off as the minor district (king amphoe) Ko Pha-ngan effective 1 October 1970.[19] In 1980, administrative village number seven of Ang Thong Sub-district covering the islands Ko Chueak, Ko Nok Phao, and Ko Rikan was reassigned to Don Sak District,[20] where it now forms village number 11.
