Home Postcode finder QLD Forest Hill Forest Hill postcode QLD Forest Hill is a locality in Queensland covered by postcode 4342. Postcode 4342 State or territory Queensland (QLD) Region Western Suburbs Add a free Forest Hill business listing More business listings in Forest Hill Businesses in Forest HillForest Hill State School13 Church St · 07 54112111 Common questionsWhat is the postcode for Forest Hill?Forest Hill, QLD has the postcode 4342.What state is Forest Hill in?Forest Hill is in Queensland (QLD).Does postcode 4342 cover more than one suburb?Yes. Postcode 4342 covers 6 localities, so the postcode alone does not identify Forest Hill. Browse other postcodes in Queensland, or widen the search to every Australian postcode.