Home Postcode finder QLD Rockside Rockside postcode QLD Rockside is a locality in Queensland covered by postcode 4343. Postcode 4343 State or territory Queensland (QLD) Region Western Suburbs Add a free Rockside business listing Be the first listing in Rockside Common questionsWhat is the postcode for Rockside?Rockside, QLD has the postcode 4343.What state is Rockside in?Rockside is in Queensland (QLD).Does postcode 4343 cover more than one suburb?Yes. Postcode 4343 covers 24 localities, so the postcode alone does not identify Rockside. Browse other postcodes in Queensland, or widen the search to every Australian postcode.