Det Udom 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 southern part of Ubon Ratchathani Province

Ubon Ratchathani Province

-History:The area was part of the Khmer Empire. Before the late eighteenth century, this area evidently was outside Siamese or Thai Ayutthaya Kingdom....

, 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...

.

Geography

Neighboring districts are (from the northwest clockwise) Samrong

Amphoe Samrong

Samrong is a district in the western part of Ubon Ratchathani Province, northeastern Thailand.-History:The minor district Samrong was created on April 15 1985, when the six tambon Samrong, Khok Kong, Nong Hai, Kho Noi, Non Ka Len and Khok Sawang were split off from Warin Chamrap district...

, Warin Chamrap

Amphoe Warin Chamrap

Warin Chamrap is a district in the western part of Ubon Ratchathani Province, northeastern Thailand.-Geography:Neighboring districts are Mueang Ubon Ratchathani, Sawang Wirawong, Na Yia, Det Udom, Samrong of Ubon Ratchathani Province and Kanthararom of Sisaket Province.The important water...

, Na Yia

Amphoe Na Yia

Na Yia is a district in the central part of Ubon Ratchathani Province, northeastern Thailand.-History:Na Yia was separated from Det Udom district to create a minor district on May 31 1993....

, Phibun Mangsahan

Amphoe Phibun Mangsahan

Phibun Mangsahan is a district in the central part of Ubon Ratchathani Province, northeastern Thailand.-Geography:Neighboring districts are Buntharik, Det Udom, Na Yia, Sawang Wirawong, Tan Sum, Si Mueang Mai, Khong Chiam and Sirindhorn of Ubon Ratchathani Province.-History:Originally named...

, Buntharik

Amphoe Buntharik

Buntharik is a district in the southeastern part of Ubon Ratchathani Province, northeastern Thailand.-History:King Nak of Champasak proposed King Mongkut to established Mueang Bua, which is now in the area of Ban Kong Krachu, Tambon Phon Sawan, Na Chaluai district. Later Phra Aphai , the...

, Na Chaluai

Amphoe Na Chaluai

Na Chaluai is a district in the southern part of Ubon Ratchathani Province, northeastern Thailand.-History:The Ministry of Interior of the Government of Thailand created the "minor district" Na Chaluai on February 1 1972, when the three tambon Na Chaluai, Phon Sawan and Non Sombun were split...

, Nam Yuen

Amphoe Nam Yuen

Nam Yuen is the southernmost district of Ubon Ratchathani Province, northeastern Thailand.-History:A group of people from Det Udom moved to Ban Chanla Na Dom of Champassak during the reign of King Mongkut. Later in 1881 the king of Champassak proposed to King Chulalongkorn to upgraded Ban Chanla...

, Nam Khun, Thung Si Udom

Amphoe Thung Si Udom

Thung Si Udom is a district in the southwestern part of Ubon Ratchathani Province, northeastern Thailand.-Geography:Neighboring districts are Det Udom, Nam Khun of Ubon Ratchathani Province and Kantharalak of Sisaket Province.-History:The minor district Thung Si Udom was created on April 1...

 of Ubon Ratchathani Province and Benchalak

Amphoe Benchalak

Benchalak is a district of Sisaket Province, northeastern Thailand.-History:The minor district was created on May 31 1993, when five tambon were split off from Kantharalak district...

 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:...

Administration

The district is subdivided into 16 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 229 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...

). Mueang Det is a town (thesaban mueang) covering parts of the same-named tambon. There are also three townships (thesaban tambon) - Na Suang and Bua Ngam each cover parts of the same-named tambon, and Kut Prathai covers the whole tambon Kut Prathai. There are further 10 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.	Mueang Det	เมืองเดช	31	32,919
2.	Na Suang	นาส่วง	12	8,943
4.	Na Charoen	นาเจริญ	11	6,963
6.	Thung Thoeng	ทุ่งเทิง	15	8,180
8.	Som Sa-at	สมสะอาด	12	10,413
9.	Kut Prathai	กุดประทาย	20	12,613
10.	Top Hu	ตบหู	21	11,406
11.	Klang	กลาง	17	14,269
12.	Kaeng	แก้ง	11	7,866
13.	Tha Pho Si	ท่าโพธิ์ศรี	10	6,477
15.	Bua Ngam	บัวงาม	16	11,953
16.	Kham Khrang	คำครั่ง	10	6,180
17.	Na Krasaeng	นากระแซง	12	13,020
20.	Phon Ngam	โพนงาม	12	8,585
21.	Pa Mong	ป่าโมง	10	4,535
23.	Non Sombun	โนนสมบูรณ์	9	5,574

Missing numbers are tambon which now form the district Na Yia and Thung Si Udom.