Home Postcodes by state QLD 4723 Postcode 4723 4723 is the postcode for 11 localities in QLD: Belcong, Capella, Carbine Creek, Chirnside, Crinum, Hibernia and 5 more. Localities with postcode 4723BelcongQLDCapellaQLDCarbine CreekQLDChirnsideQLDCrinumQLDHiberniaQLDKhosh BuldukQLDLilyvaleQLDLowestoffQLDMount MacarthurQLDRetroQLD Postcode 4723 State or territory Queensland (QLD) Localities 11 Council area Central Highlands Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4722 · Postcode 4724