Home Postcode finder WA Rossmoyne Rossmoyne postcode WA Rossmoyne is a locality in Western Australia covered by postcode 6148. Postcode 6148 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Rossmoyne business listing More business listings in Rossmoyne Businesses in RossmoyneLove Fest by Aisha74D Second Ave, Rossmoyne WA 6148, Australia · 0449 266 553Perth Marketing Solution7 Fourth Avenue · 0413 558 538Perth Marketing Solutions7 Fourth Avenue · +61413558538 Common questionsWhat is the postcode for Rossmoyne?Rossmoyne, WA has the postcode 6148.What state is Rossmoyne in?Rossmoyne is in Western Australia (WA).Does postcode 6148 cover more than one suburb?Yes. Postcode 6148 covers 4 localities, so the postcode alone does not identify Rossmoyne. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.