Home Postcodes by state QLD 4030 Postcode 4030 4030 is the postcode for 3 localities in QLD: Lutwyche, Windsor and Wooloowin. Localities with postcode 4030LutwycheQLDWindsorQLDWooloowinQLD Postcode 4030 State or territory Queensland (QLD) Localities 3 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4029 · Postcode 4031