Home Postcode finder WA Mosman Park Mosman Park postcode WA Mosman Park is a locality in Western Australia covered by postcode 6012. Postcode 6012 State or territory Western Australia (WA) Region North West Suburbs Add a free Mosman Park business listing More business listings in Mosman Park Businesses in Mosman ParkBeehive Montessori Primary School1 Curtin Ave · 08 93831283Dual Income Plus1/610 Stirling Highway, Mosman Park WA, Australia · 0489 082 189Expert Hearing CareHearing Aids Perth · (08) 6262 8991 Common questionsWhat is the postcode for Mosman Park?Mosman Park, WA has the postcode 6012.What state is Mosman Park in?Mosman Park is in Western Australia (WA).Does postcode 6012 cover more than one suburb?No. Postcode 6012 covers Mosman Park only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.