Pho Si Suwan is a district (Amphoe

Amphoe

An amphoe is the second level administrative subdivision of Thailand. Usually translated as district, amphoe make up the provinces, and are analogous to a county seat...

) in the northwestern part of Sisaket Province

Sisaket Province

Sisaket , is one of the north-eastern provinces of Thailand. Neighboring provinces are Surin, Roi Et, Yasothon and Ubon Ratchathani. To the south it borders Oddar Meancheay and Preah Vihear of Cambodia.-Geography:...

, northeastern Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

.

History

The minor district (King Amphoe) was established on April 30, 1994, when it was split off from Uthumphon Phisai district

Amphoe Uthumphon Phisai

Uthumphon Phisai is a district in the western part of Sisaket Province, northeastern Thailand.-Geography:Neighboring districts are Rasi Salai, Mueang Sisaket, Wang Hin, Prang Ku, Huai Thap Than, Mueang Chan, Pho Si Suwan and Bueng Bun.-History:The district goes back to the Mueang Uthumphon...

.

Following a decision of the Thai government on May 15, 2007, all of the 81 minor districts were to be upgraded to full districts. With the publishing in the Royal Gazette on August 24 the upgrade became official .

Geography

Neighboring districts are (from the north clockwise) Bueng Bun

Amphoe Bueng Bun

Bueng Bun is a district of Sisaket Province, northeastern Thailand.-History:The minor district was created on July 18, 1977, when the four tambon Po, Dot, Siao and Nong Ma were split off from Uthumphon Phisai district. 1979 all subdistricts except Po were returned to Uthumphon Phisai...

, Uthumphon Phisai

Amphoe Uthumphon Phisai

Uthumphon Phisai is a district in the western part of Sisaket Province, northeastern Thailand.-Geography:Neighboring districts are Rasi Salai, Mueang Sisaket, Wang Hin, Prang Ku, Huai Thap Than, Mueang Chan, Pho Si Suwan and Bueng Bun.-History:The district goes back to the Mueang Uthumphon...

 and Mueang Chan

Amphoe Mueang Chan

Mueang Chan is a district of Sisaket Province, northeastern Thailand.-History:The minor district was created on April 1 1992, when three tambon were split off from Uthumphon Phisai district...

 of Sisaket Province, and Rattanaburi

Amphoe Rattanaburi

Rattanaburi is a district in the northeastern part of Surin Province, northeastern Thailand.-History:Rattanaburi was a Mueang under Mueang Surin, which was converted into a district in the thesaphiban administrative reforms at the end of the 19th century.-Geography:Neighboring districts are Non...

 of Surin Province

Surin Province

Surin is one of the north-eastern provinces of Thailand. Neighboring provinces are Buriram, Maha Sarakham, Roi Et and Sisaket...

.

Administration

The district is subdivided into 5 subdistricts (tambon

Tambon

Tambon is a local government unit in Thailand. Below district and province , they form the third administrative subdivision level. As of the 2009 there are 7255 tambon, not including the 169 khwaeng of Bangkok, which are set at the same administrative level, thus every district contains 8-10 tambon...

), which are further subdivided into 80 villages (muban

Muban

Muban is the lowest administrative subdivision of Thailand. Usually translated as village, they are the subdivision of tambon. As of 2008, there are 74944 administrative villages in Thailand. As of the 1990 census, the average village consisted of 144 households or 746 persons.A muban does not...

). There are no municipal (thesaban

Thesaban

Thesaban are the municipalities in Thailand. There are three levels of municipalities - city, town and subdistrict municipality. Both Bangkok and Pattaya are special municipal entities outside the thesaban system....

) areas, and 5 Tambon administrative organizations (TAO).

No.	Name	Thai name	Villages	Inh. Population A population is all the organisms that both belong to the same group or species and live in the same geographical area. The area that is used to define a sexual population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals...
1.	Dot	โดด	25	7,952
2.	Siao	เสียว	17	4,455
3.	Nong Ma	หนองม้า	12	3,519
4.	Phue Yai	ผือใหญ่	14	4,568
5.	I Se	อีเซ	12	3,025