[6] Kulim is believed to have been opened and settled in since the 18th century by 100 Pattani Malay descent.

The largest tin mines in Kulim were in Taman Tunku Putra, Kampung Bukit Besar, Karangan, Terap and Kelang Lama.

In March 2019, Economic Affairs Minister Azmin Ali announced the Federal Government's approval to invest MYR 1.6 billion (~USD 380 million) to build the proposed Kulim International Airport.

[13] Around July 2023, the Federal Government halted construction for this airport due to lack of need.

[14] List of Kulim district representatives in the Federal Parliament (Dewan Rakyat) List of Kulim district representatives in the State Legislative Assembly (Dewan Undangan Negeri)