Home Postcode finder QLD Allenstown Allenstown postcode QLD Allenstown is a locality in Queensland covered by postcode 4700. Postcode 4700 State or territory Queensland (QLD) Region Central QLD Add a free Allenstown business listing More business listings in Allenstown Businesses in AllenstownBeautopia Hair & Beauty Rockhampton42 Gladstone Rd, Rockhampton QLD 4700 · (07) 4927 7200 Common questionsWhat is the postcode for Allenstown?Allenstown, QLD has the postcode 4700.What state is Allenstown in?Allenstown is in Queensland (QLD).Does postcode 4700 cover more than one suburb?Yes. Postcode 4700 covers 12 localities, so the postcode alone does not identify Allenstown. Browse other postcodes in Queensland, or widen the search to every Australian postcode.