Home Postcodes by state ACT 2602 Postcode 2602 2602 is the postcode for 7 localities in ACT: Ainslie, Dickson, Downer, Hackett, Lyneham, O'Connor and 1 more. Localities with postcode 2602AinslieACTDicksonACTDownerACTHackettACTLynehamACTO'ConnorACTWatsonACT Postcode 2602 State or territory Australian Capital Territory (ACT) Localities 7 Council area None: the ACT Government provides local services Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2601 · Postcode 2603