Home Postcodes by state QLD 4881 Postcode 4881 4881 is the postcode for 4 localities in QLD: Koah, Kuranda, Mona Mona and Speewah. Localities with postcode 4881KoahQLDKurandaQLDMona MonaQLDSpeewahQLD Postcode 4881 State or territory Queensland (QLD) Localities 4 Council area Mareeba Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4880 · Postcode 4882