Home Postcode finder QLD Lake Manchester Lake Manchester postcode QLD Lake Manchester is a locality in Queensland covered by postcode 4306. Postcode 4306 State or territory Queensland (QLD) Region Western Suburbs Add a free Lake Manchester business listing Be the first listing in Lake Manchester Common questionsWhat is the postcode for Lake Manchester?Lake Manchester, QLD has the postcode 4306.What state is Lake Manchester in?Lake Manchester is in Queensland (QLD).Does postcode 4306 cover more than one suburb?Yes. Postcode 4306 covers 56 localities, so the postcode alone does not identify Lake Manchester. Browse other postcodes in Queensland, or widen the search to every Australian postcode.