Iskandar Malaysia (Jawi: إسکندر مليسيا), formerly known as Iskandar Development Region (IDR; Malay: Wilayah Pembangunan Iskandar; Jawi: ولايه ڤمباڠونن اسكندر) and South Johor Economic Region (SJER; Malay: Wilayah Ekonomi Johor Selatan; Jawi: ولايه ايكونومي جوهر سلاتن), is the main southern development corridor in Johor, Malaysia.

[1] The investment corridor of Iskandar Malaysia (IM)[2] grew out of a 2005 government requested feasibility study by the Khazanah Nasional which found that the development of such a zone would be economically, socially and developmentally beneficial.

[citation needed] In 2007, the Malaysia-Singapore Joint Ministerial Committee for Iskandar Malaysia (JMCIM) was established to meet annually and review cooperation and developments in IM.

The population table is based on the official census of 2020 for the local government areas within Iskandar Malaysia.

[9] The region consists of Johor Bahru Sentral, Kempas Baru and Kulai Station.

The Johor–Singapore Causeway links the city to Woodlands, Singapore with a six-lane road and a railway line terminating at the Southern Integrated Gateway.

[14] The Malaysia–Singapore Second Link, located west of the metropolitan area, was constructed in 1997 to alleviate congestion on the Causeway.