Thung Sai, Sai Thong Watthana

Thung Sai (, ) is a "tambon" (subdistrict) of Sai Thong Watthana District, in Kamphaeng Phet Province, Thailand. In 2019 it had a total population of 9,509 people.
History.
The subdistrict was created effective September 15, 1972 by splitting off 7 administrative villages from Wang Yang.
Administration.
Central administration.
The "tambon" is subdivided into 17 administrative villages ("muban").
Local administration.
The whole area of the subdistrict is covered by the subdistrict municipality ("Thesaban Tambon") Thung Sai (เทศบาลตำบลทุ่งทราย).