Home Postcodes by state QLD 4106 Postcode 4106 4106 is the postcode for 2 localities in QLD: Brisbane Market and Rocklea. Localities with postcode 4106Brisbane MarketQLDRockleaQLD Postcode 4106 State or territory Queensland (QLD) Localities 2 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4105 · Postcode 4107