Home Postcodes by state SA 5275 Postcode 5275 5275 is the postcode for 15 localities in SA: Blackford, Boatswain Point, Cape Jaffa, Keilira, Kingston Se, Mount Benson and 9 more. Localities with postcode 5275BlackfordSABoatswain PointSACape JaffaSAKeiliraSAKingston SeSAMount BensonSAPinks BeachSAReedy CreekSARosetownSASandy GroveSATaratapSATilley SwampSAWangolinaSAWest RangeSAWyomiSA Postcode 5275 State or territory South Australia (SA) Localities 15 Council area Kingston; Robe Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5273 · Postcode 5276