Khai Si
Khai Si () is a subdistrict (tambon) in Mueang Bueng Kan district, in Bueng Kan province, Isan (northeastern Thailand). As of 2022, it had a population of 5,466 people and has jurisdiction over ten villages. It lies on Highway 212 and the Mekong River and border with Laos, west of Bueng Kan and east of Ho Kham. History
The subdistrict was created in 1979, when nine administrative villages were split from Non Sawang subdistrict (then still named Nong Kheng) to form the new sub-district. Administration

Central government
The administration of Khai Si subdistrict (tambon) is responsible for an area that covers 36,905 rai ~  and consists of ten administrative villages (muban).As of 2022: 5,466 people. Local government
Khai Si subdistrict municipality () covers the whole Khai Si subdistrict. Temple
Khai Si subdistrict is home to the following active temples, where Theravada Buddhism is practised by local residents:

References

Tambon of Bueng Kan province
Populated places in Bueng Kan province
Mueang Bueng Kan District