Home Postcode finder QLD St Kilda St Kilda postcode QLD St Kilda is a locality in Queensland covered by postcode 4671. Postcode 4671 State or territory Queensland (QLD) Region Sunshine Coast Add a free St Kilda business listing Be the first listing in St Kilda Common questionsWhat is the postcode for St Kilda?St Kilda, QLD has the postcode 4671.What state is St Kilda in?St Kilda is in Queensland (QLD).Does postcode 4671 cover more than one suburb?Yes. Postcode 4671 covers 35 localities, so the postcode alone does not identify St Kilda. Browse other postcodes in Queensland, or widen the search to every Australian postcode.