In maps made by the British administration before Singapore's self-governance in 1959, the colonial era district (mukim) of Jurong was rather small, occupying what is today the present-day town of Bukit Batok and Tengah. Jurong Mukim was earlier known as West Bukit Timak Mukim, the renaming to Juong Mukim is probably with reference the Jurong settlement located at the head of Jurong River and also located at the south-west corner of this Mukim. Other than that, most part of Jurong Mukim has very little historical basis for calling herself 'Jurong'.