Home Postcode finder QLD Allandale Allandale postcode QLD Allandale is a locality in Queensland covered by postcode 4310. Postcode 4310 State or territory Queensland (QLD) Region Western Suburbs Add a free Allandale business listing Be the first listing in Allandale Common questionsWhat is the postcode for Allandale?Allandale, QLD has the postcode 4310.What state is Allandale in?Allandale is in Queensland (QLD).Does postcode 4310 cover more than one suburb?Yes. Postcode 4310 covers 26 localities, so the postcode alone does not identify Allandale. Browse other postcodes in Queensland, or widen the search to every Australian postcode.