Home Postcode finder QLD Alexandria Alexandria postcode QLD Alexandria is a locality in Queensland covered by postcode 4825. Postcode 4825 State or territory Queensland (QLD) Region North QLD Add a free Alexandria business listing Be the first listing in Alexandria Common questionsWhat is the postcode for Alexandria?Alexandria, QLD has the postcode 4825.What state is Alexandria in?Alexandria is in Queensland (QLD).Does postcode 4825 cover more than one suburb?Yes. Postcode 4825 covers 36 localities, so the postcode alone does not identify Alexandria. It also appears in 2 states or territories, so it does not identify a state either. Browse other postcodes in Queensland, or widen the search to every Australian postcode.