Districts with only municipalities

Before the recent massive upgrades of subdistrict administrative organizations (TAO) to municipalities, there were only very few districts which only had municipalities and no TAO at all, interesting both island districts.

• Ko Samui, Surat Thani - sanitary district upgraded in 1999, sanitary district covered whole district since 1973 when Ko Pha Ngan was split off.
• Ko Sichang, Chonburi, since 2004 when TAO Tha Thewawong (ท่าเทววงษ์) was merged into municipality.
  

But as since 2007 a lot of the TAO get upgraded to municipalities, the number of such districts with only municipalities increased increased significantly as well. All of them just "lost" their last TAO this year, and interestingly the province Lampang has three of its southern district in this group.

• Nong Sung, Mukdahan, with five subdistrict municipalities.
• Nong Hin, Roi Et, with four subdistrict municipalities.
• Thoen, Lampang, with eight subdistrict municipalities.
• Mae Phrik, Lampang, with four subdistrict municipalities.
• Soem Ngam, Lampang, with five subdistrict municipalities.
• Srinagarindra, Phatthalung, with four subdistrict municipalities.
• Mueang Suang, Roi Et, with four subdistrict municipalities.