Caroline Springs is a suburb of Melbourne, Victoria, Australia, 25 km west of Melbourne's Central Business District. Its local government area is the City of Melton. At the 2011 Census, Caroline Springs had a population of 20,366.
Caroline Springs has been developed on greenfield land since 1999 by Delfin, in partnership with the original landowners. Centrally located, just north of Kororoit Creek, is the town square and main shopping center known as CS Square, and a man-made lake known as Lake Caroline.
At the time of development, it was one of Melbourne's fastest growing suburbs and Delfin anticipated the population to be in excess of 25,000 people by 2015.
The Caroline Springs Post Office opened on 8 August 2005.