Si Somdet district
Si Somdet is a district in Roi Et province, Thailand.Geography
Neighboring districts are : Mueang Roi Et and Chaturaphak Phiman of Roi Et Province; Wapi Pathum, Kae Dam, and Mueang Maha Sarakham of Maha Sarakham province.History
The district was created on 1 April 1987, when the five tambons, Pho Thong, Si Somdet, Mueang Plueai, Nong Yai, and Suan Chik were split off from Mueang Roi Et district. It was upgraded to a full district on 4 July 1994.Administration
The district is divided into eight sub-districts, which are further subdivided into 82 villages. There are no municipal areas; there are eight tambon administrative organizations.