Home Postcode finder QLD East Ipswich East Ipswich postcode QLD East Ipswich is a locality in Queensland covered by postcode 4305. Postcode 4305 State or territory Queensland (QLD) Region Western Suburbs Add a free East Ipswich business listing More business listings in East Ipswich Businesses in East IpswichIpswich East State SchoolJacaranda St · 07 34326333Ipswich Girls Grammar SchoolQueen Victoria Rd · 07 34544547Yellow Jersey Bike Shop76 Brisbane Rd · +61 7 3281 0055 Common questionsWhat is the postcode for East Ipswich?East Ipswich, QLD has the postcode 4305.What state is East Ipswich in?East Ipswich is in Queensland (QLD).Does postcode 4305 cover more than one suburb?Yes. Postcode 4305 covers 23 localities, so the postcode alone does not identify East Ipswich. Browse other postcodes in Queensland, or widen the search to every Australian postcode.