Home Postcode finder QLD Rockingham Rockingham postcode QLD Rockingham is a locality in Queensland covered by postcode 4854. Postcode 4854 State or territory Queensland (QLD) Region North QLD Add a free Rockingham business listing More business listings in Rockingham Businesses in RockinghamBankruptcy Rockingham Rockingham · 1300795575Bankruptcy RockinghamAustralia · 1300795575 Common questionsWhat is the postcode for Rockingham?Rockingham, QLD has the postcode 4854.What state is Rockingham in?Rockingham is in Queensland (QLD).Does postcode 4854 cover more than one suburb?Yes. Postcode 4854 covers 25 localities, so the postcode alone does not identify Rockingham. Browse other postcodes in Queensland, or widen the search to every Australian postcode.