Home Postcodes by state SA 5571 Postcode 5571 5571 is the postcode for 9 localities in SA: Ardrossan, Black Point, Cunningham, James Well, Petersville, Pine Point and 3 more. Localities with postcode 5571ArdrossanSABlack PointSACunninghamSAJames WellSAPetersvilleSAPine PointSARogues PointSASandilandsSATiddy Widdy BeachSA Postcode 5571 State or territory South Australia (SA) Localities 9 Council area Yorke Peninsula Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5570 · Postcode 5572