Home Postcode finder WA Cottesloe Cottesloe postcode WA Cottesloe is a locality in Western Australia covered by postcode 6011. Postcode 6011 State or territory Western Australia (WA) Region North West Suburbs Add a free Cottesloe business listing More business listings in Cottesloe Businesses in CottesloeAll Property PerthCottesloe WA, Australia · 0499 919 499Claremont AsphaltCottesloe WA, Australia · 0418 957 081European Bedding557 Stirling Highway, Cottesloe WA 6011, Australia · (08) 9384 0388 Common questionsWhat is the postcode for Cottesloe?Cottesloe, WA has the postcode 6011.What state is Cottesloe in?Cottesloe is in Western Australia (WA).Does postcode 6011 cover more than one suburb?Yes. Postcode 6011 covers 2 localities, so the postcode alone does not identify Cottesloe. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.