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Khong Chiam (Thai: โขงเจียม, pronounced [kʰǒːŋ t͡ɕīa̯m]) is the easternmost district (Amphoe) of Ubon Ratchathani Province of Thailand.

Khong Chiam
Amphoe location in Ubon Ratchathani Province
Amphoe location in Ubon Ratchathani Province
Coordinates: 15°19′8″N 105°29′44″E / 15.31889°N 105.49556°E / 15.31889; 105.49556Coordinates: 15°19′8″N 105°29′44″E / 15.31889°N 105.49556°E / 15.31889; 105.49556
Country  Thailand
Province Ubon Ratchathani
Seat Khong Chiam
 • Total 765.0 km2 (295.4 sq mi)
Population (2005)
 • Total 32,693
 • Density 32.7/km2 (85/sq mi)
Time zone THA (UTC+7)
Postal code 34220
Geocode 3403



The area of the district was the central district Khwaeng of Mueang Khong Chiam, which is now Si Mueang Mai district. On January 1, 1957 the three tambon Khong Chiam, Huai Yang and Pho Klang were split off from Khong Chiam to form the Ban Dan minor district (King Amphoe).[1] On December 11, 1959 it was elevated to a full district.[2]

On September 14, 1971 the district was renamed to Khong Chiam, while the former district Khong Chiam was renamed to Si Mueang Mai, as the historical center of Mueang Khong Chiam was located within this district.[3]


Neighboring districts are (from the south clockwise) Sirindhorn, Phibun Mangsahan and Si Mueang Mai. To the east across the Mekong river are the Laotian provinces of Salavan and Champasak.

Khong Chiam is the easternmost point of Thailand.

The Pak Mun Dam stops the Mun River before tributes the Mekong River in this district.

Also the Kaeng Tana and Pha Taem national parks are located in Khong Chiam district.

Mun River Mouth, the point where the Mun and Mekong join in Amphoe Khong Chiam


The district is subdivided into 5 subdistricts (tambon), which are further subdivided into 50 villages (muban). The township (thesaban tambon) Ban Dan covers parts of tambon Khong Chiam. There are further 5 Tambon administrative organizations (TAO).

No. Name Thai name Villages Inh.
1. Khong Chiam โขงเจียม 14 8,039
2. Huai Yang ห้วยยาง 9 7,457
3. Na Pho Klang นาโพธิ์กลาง 9 6,895
4. Nong Saeng Yai หนองแสงใหญ่ 9 5,104
5. Huai Phai ห้วยไผ่ 9 5,198


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