Home Postcodes by state QLD 4011 Postcode 4011 4011 is the postcode for 2 localities in QLD: Clayfield and Hendra. Localities with postcode 4011ClayfieldQLDHendraQLD Postcode 4011 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 4010 · Postcode 4012