Karnet Prison Farm is located on Whadjuk Noongar land, 78 kilometres south of Perth.

Karnet is a minimum-security prison for adult males, with a focus on preparing prisoners to re-enter the community. Karnet is a working farm, and a vital link in the Department of Justice’s food supply chain. The farm includes an abattoir and dairy, and produces fresh meat, milk, eggs, fruit, and vegetables for the wider prison system. These areas also provide opportunity for prisoner employment and training.

Karnet was originally commissioned as a prison in 1963, known as the Karnet Rehabilitation Training Centre. At that time, it held around 60 men. It now has a capacity of 366.