Subang Jaya is a suburban city in the Klang Valley, Selangor, Malaysia. It comprises the southern third of the district of Petaling, and is home to a third of the district population of 1.78 million. Subang Jaya comprises (SS12 to SS19), Bandar Sunway, USJ, Putra Heights and Batu Tiga. The city is governed by the Subang Jaya Municipal Council (MPSJ), which also governs other areas of the Petaling district not under Petaling Jaya and Shah Alam.
Subang Jaya was originally a township of Petaling Jaya. However, due to the high amount of population and fast rising developments, it has earned its own municipality, the Majlis Perbandaran Subang Jaya. The city was developed by Sime UEP Berhad, the property development arm of the Malaysian conglomerate Sime Darby. The site was formerly an oil palm plantation called Seafield Estate under the municipality of Majlis Bandaraya Petaling Jaya. Construction work for the development of Subang Jaya began in 1974 and was concluded in 1988. Upon the completion of Subang Jaya on the same year, Sime UEP began clearing land for the development of UEP Subang Jaya.