From 6 March 1998, Phasi Charoen Sakha 1 district was combined with Lak Song sub-district, formerly part of Nong Khaem District, to form a new district, called Khet Bang Khae. The sub-districts of the new Bang Khae district then consisted of Bang Khae, Bang Khae Nuea, Bang Phai and Lak Song.[2]
Together with the creation of the district, the four sub-districts of Bang Khae were reorganised for administrative purposes.[3] In 2009 the subdistrict boundaries were adjusted again.[4]
Its name means "county of the hummingbird tree"; presumably, in the past there was a large population of this species in the district.[5]
Administration
The district is divided into four sub-districts (khwaeng).