Home Postcodes by state SA 5085 Postcode 5085 5085 is the postcode for 5 localities in SA: Clearview, Enfield, Northfield, Northgate and Enfield Plaza. Localities with postcode 5085ClearviewSAEnfieldSAEnfield PlazaSANorthfieldSANorthgateSA Postcode 5085 State or territory South Australia (SA) Localities 5 Council area Port Adelaide Enfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5084 · Postcode 5086