Home Postcodes by state QLD Opalton Opalton postcode QLD Opalton is a locality in Queensland covered by postcode 4735. Postcode 4735 (every locality with postcode 4735) State or territory Queensland (QLD) Region Central QLD Council area Winton Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Opalton business listing Be the first listing in Opalton Also in postcode 4735Diamantina LakesQLD 4735MiddletonQLD 4735WintonQLD 4735 Common questionsWhat is the postcode for Opalton?Opalton, QLD has the postcode 4735.What state is Opalton in?Opalton is in Queensland (QLD).What council is Opalton in?Opalton is in the Winton local government area.Does postcode 4735 cover more than one suburb?Yes. Postcode 4735 covers 4 localities, so the postcode alone does not identify Opalton. Browse other postcodes in Queensland, or widen the search to every Australian postcode.