Home Postcode finder QLD Oonoonba Oonoonba postcode QLD Oonoonba is a locality in Queensland covered by postcode 4811. Postcode 4811 State or territory Queensland (QLD) Region North QLD Add a free Oonoonba business listing More business listings in Oonoonba Businesses in OonoonbaOonoonba State SchoolOonoonba Rd · 07 47998333 Common questionsWhat is the postcode for Oonoonba?Oonoonba, QLD has the postcode 4811.What state is Oonoonba in?Oonoonba is in Queensland (QLD).Does postcode 4811 cover more than one suburb?Yes. Postcode 4811 covers 9 localities, so the postcode alone does not identify Oonoonba. Browse other postcodes in Queensland, or widen the search to every Australian postcode.