Home Postcode finder QLD Agnes Water Agnes Water postcode QLD Agnes Water is a locality in Queensland covered by postcode 4677. Postcode 4677 State or territory Queensland (QLD) Region Central QLD Add a free Agnes Water business listing More business listings in Agnes Water Businesses in Agnes WaterAgnes Water State School1 Donohue Dr · 07 49021320 Common questionsWhat is the postcode for Agnes Water?Agnes Water, QLD has the postcode 4677.What state is Agnes Water in?Agnes Water is in Queensland (QLD).Does postcode 4677 cover more than one suburb?Yes. Postcode 4677 covers 8 localities, so the postcode alone does not identify Agnes Water. Browse other postcodes in Queensland, or widen the search to every Australian postcode.