South Windsor is a suburb of Sydney in the state of New South Wales, Australia. The suburb is ruled and governed by the local government area of Hawkesbury City Council. South Windsor is located 59 km from Sydney Central Business District. Around 6000 people live in the suburb (Census 2011). The postcode is 2756. Richmond, Windsor, Mulgrave, Londonderry, Bligh Park and Mulgrave are the surrounding cities.