Bukit Mertajam had been part of the Hindu-Buddhist
Bujang Valley civilisation, which ruled over what is now
Kedah up to the 6th century AD. A
megalith at
Cherok Tok Kun, discovered in 1845, contains
Pali inscriptions which alluded to the presence of a Hindu-Buddhist polity in the region between the 5th and 6th centuries. Bukit Mertajam only came into existence in the 19th century, after the acquisition of the area by the
British East India Company in 1800. At the time, it was one of the five local governments within Province Wellesley. The local governments were eventually amalgamated and transformed into the Seberang Perai Municipal Council by 1976. In 2006, the headquarters of the municipal council was relocated from
Butterworth to the Bandar Perda township near Bukit Mertajam, making the latter the seat of the local government of Seberang Perai as well. ==Geography==