Home Postcode finder SA Duck Ponds Duck Ponds postcode SA Duck Ponds is a locality in South Australia covered by postcode 5607. Postcode 5607 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Duck Ponds business listing Be the first listing in Duck Ponds Common questionsWhat is the postcode for Duck Ponds?Duck Ponds, SA has the postcode 5607.What state is Duck Ponds in?Duck Ponds is in South Australia (SA).Does postcode 5607 cover more than one suburb?Yes. Postcode 5607 covers 50 localities, so the postcode alone does not identify Duck Ponds. Browse other postcodes in South Australia, or widen the search to every Australian postcode.