Home Postcodes by state SA 5307 Postcode 5307 5307 is the postcode for 5 localities in SA: Karoonda, Karte, Kulkami, Marama and Mootatunga. Localities with postcode 5307KaroondaSAKarteSAKulkamiSAMaramaSAMootatungaSA Postcode 5307 State or territory South Australia (SA) Localities 5 Council area Karoonda East Murray Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5306 · Postcode 5308