Home Postcodes by state SA 5086 Postcode 5086 5086 is the postcode for 6 localities in SA: Gilles Plains, Greenacres, Hampstead Gardens, Hillcrest, Manningham and Oakden. Localities with postcode 5086Gilles PlainsSAGreenacresSAHampstead GardensSAHillcrestSAManninghamSAOakdenSA Postcode 5086 State or territory South Australia (SA) Localities 6 Council area Mainly Port Adelaide Enfield, partly Tea Tree Gully; Port Adelaide Enfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5085 · Postcode 5087