Picton is a small town in the Macarthur Region of New South Wales, Australia, in the Wollondilly Shire, in south-western Sydney. The town is located approximately 90 kilometres south-west of the Sydney CBD, close to Camden and Campbelltown. It is also the administrative centre of Wollondilly Shire.

Macarthur is a region in the south-west part of the Greater Sydney area, in the state of New South Wales, Australia. The region includes the local government areas of the City of Campbelltown, Camden Council, and Wollondilly Shire. It covers an area of 3,067 square kilometres and has a population of close to 310,000 residents. The region geographically forms the foothills between the Blue Mountains and Southern Highlands regions.