Home Postcode finder WA Rockingham Rockingham postcode WA Rockingham is a locality in Western Australia covered by postcode 6168. Postcode 6168 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Rockingham business listing More business listings in Rockingham Businesses in RockinghamAAPL Air ConditioningUnit 7 · 08 9592 9099Accord Security50 Kent Street, Rockingham WA 6168, Australia · 0894562622Affordable Flooring Solutionsunit 5/26 Hurrell Way, Rockingham WA, Australia · +61 425 181 303 Common questionsWhat is the postcode for Rockingham?Rockingham, WA has the postcode 6168.What state is Rockingham in?Rockingham is in Western Australia (WA).Does postcode 6168 cover more than one suburb?Yes. Postcode 6168 covers 7 localities, so the postcode alone does not identify Rockingham. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.