Home Postcode finder QLD Oaky Creek Oaky Creek postcode QLD Oaky Creek is a locality in Queensland covered by postcode 4285. Postcode 4285 State or territory Queensland (QLD) Region Heathwood Add a free Oaky Creek business listing Be the first listing in Oaky Creek Common questionsWhat is the postcode for Oaky Creek?Oaky Creek, QLD has the postcode 4285.What state is Oaky Creek in?Oaky Creek is in Queensland (QLD).Does postcode 4285 cover more than one suburb?Yes. Postcode 4285 covers 33 localities, so the postcode alone does not identify Oaky Creek. Browse other postcodes in Queensland, or widen the search to every Australian postcode.