Sa Thầy is a rural district of Kon Tum province in the Central Highlands region of Vietnam. Sa Thầy is a very mountainous district, with many …Sa Thầy is a rural district of Kon Tum province in the Central Highlands region of Vietnam. Sa Thầy is a very mountainous district, with many hydroelectric dam projects located along the major rivers. The district has one of the lowest population densities in Vietnam. As of 2003 the district had a population of 29,605. The district covers an area of 2,412 square kilometres. The district capital lies at Sa Thầy.