Postans is a suburb of Perth, Western Australia,
located within the City of Kwinana.
An agriculture research station known as "Medina
Research Station", part of the Department of
Agriculture and Food of the state government of
Western Australia, is located in Postans.

Postans is otherwise dominated by several
quarries, a tailing pond of the nearby Alcoa
alumina refinery and a facility called the "Kwinana
Wastewater Treatment Plant".
Postans (Kwinana) is located in the Perth region,
Western Australia (WA) in Australia. The satellite
coordinates of Postans are: latitude 32°13'28"S and
longitude 115°48'59"E.