Home Postcode finder QLD Old Cooranga Old Cooranga postcode QLD Old Cooranga is a locality in Queensland covered by postcode 4626. Postcode 4626 State or territory Queensland (QLD) Region Sunshine Coast Add a free Old Cooranga business listing Be the first listing in Old Cooranga Common questionsWhat is the postcode for Old Cooranga?Old Cooranga, QLD has the postcode 4626.What state is Old Cooranga in?Old Cooranga is in Queensland (QLD).Does postcode 4626 cover more than one suburb?Yes. Postcode 4626 covers 17 localities, so the postcode alone does not identify Old Cooranga. Browse other postcodes in Queensland, or widen the search to every Australian postcode.