Jurong used to be an independent political constituency in the 1959 general elections. Chia Thye Poh represented the constituency in parliament between 1963 and 1966. Then, Boon Lay Constituency was carved out in 1976 and Hong Kah Constituency in 1984, forming four separate constituencies. Hong Kah Constituency eventually became a GRC that consisted of Nanyang, Hong Kah, Gek Poh and Bukit Batok in 1988. Teban Gardens, Pioneer, Yuhua and Taman Jurong were under Bukit Timah Constituency and the N9 region of Nanyang was under Jurong Constituency all that while.