Home Postcode finder QLD Balnagowan Balnagowan postcode QLD Balnagowan is a locality in Queensland covered by postcode 4740. Postcode 4740 State or territory Queensland (QLD) Region Central QLD Add a free Balnagowan business listing Be the first listing in Balnagowan Common questionsWhat is the postcode for Balnagowan?Balnagowan, QLD has the postcode 4740.What state is Balnagowan in?Balnagowan is in Queensland (QLD).Does postcode 4740 cover more than one suburb?Yes. Postcode 4740 covers 50 localities, so the postcode alone does not identify Balnagowan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.