Home Postcode finder SA Hamley Bridge Hamley Bridge postcode SA Hamley Bridge is a locality in South Australia covered by postcode 5401. Postcode 5401 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Hamley Bridge business listing More business listings in Hamley Bridge Businesses in Hamley BridgeHamley Bridge Primary School13 Florence St · 08 85282076 Common questionsWhat is the postcode for Hamley Bridge?Hamley Bridge, SA has the postcode 5401.What state is Hamley Bridge in?Hamley Bridge is in South Australia (SA).Does postcode 5401 cover more than one suburb?Yes. Postcode 5401 covers 3 localities, so the postcode alone does not identify Hamley Bridge. Browse other postcodes in South Australia, or widen the search to every Australian postcode.