Home Postcodes by state SA 5006 Postcode 5006 5006 is the postcode for 2 localities in SA: North Adelaide and North Adelaide Melbourne St. Localities with postcode 5006North AdelaideSANorth Adelaide Melbourne StSA Postcode 5006 State or territory South Australia (SA) Localities 2 Council area Adelaide Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5000 · Postcode 5007