Home Postcodes by state QLD 4170 Postcode 4170 4170 is the postcode for 4 localities in QLD: Cannon Hill, Morningside, Norman Park and Seven Hills. Localities with postcode 4170Cannon HillQLDMorningsideQLDNorman ParkQLDSeven HillsQLD Postcode 4170 State or territory Queensland (QLD) Localities 4 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4169 · Postcode 4171