Home Postcode finder QLD Walligan Walligan postcode QLD Walligan is a locality in Queensland covered by postcode 4655. Postcode 4655 State or territory Queensland (QLD) Region Sunshine Coast Add a free Walligan business listing Be the first listing in Walligan Common questionsWhat is the postcode for Walligan?Walligan, QLD has the postcode 4655.What state is Walligan in?Walligan is in Queensland (QLD).Does postcode 4655 cover more than one suburb?Yes. Postcode 4655 covers 25 localities, so the postcode alone does not identify Walligan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.