Home Postcodes by state ACT 2911 Postcode 2911 2911 is the postcode for 2 localities in ACT: Crace and Mitchell. Localities with postcode 2911CraceACTMitchellACT Postcode 2911 State or territory Australian Capital Territory (ACT) Localities 2 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 2906 · Postcode 2912