Home Postcodes by state QLD 4012 Postcode 4012 4012 is the postcode for 4 localities in QLD: Nundah, Toombul, Wavell Heights and Wavell Heights North. Localities with postcode 4012NundahQLDToombulQLDWavell HeightsQLDWavell Heights NorthQLD Postcode 4012 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 4011 · Postcode 4013