Home Postcodes by state SA 5169 Postcode 5169 5169 is the postcode for 5 localities in SA: Moana, Seaford, Seaford Heights, Seaford Meadows and Seaford Rise. Localities with postcode 5169MoanaSASeafordSASeaford HeightsSASeaford MeadowsSASeaford RiseSA Postcode 5169 State or territory South Australia (SA) Localities 5 Council area Onkaparinga Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5168 · Postcode 5170