Home Postcode finder SA Parilla Parilla postcode SA Parilla is a locality in South Australia covered by postcode 5303. Postcode 5303 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Parilla business listing Be the first listing in Parilla Common questionsWhat is the postcode for Parilla?Parilla, SA has the postcode 5303.What state is Parilla in?Parilla is in South Australia (SA).Does postcode 5303 cover more than one suburb?No. Postcode 5303 covers Parilla only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in South Australia, or widen the search to every Australian postcode.