Home Postcodes by state QLD 4129 Postcode 4129 4129 is the postcode for Loganholme, QLD. Localities with postcode 4129LoganholmeQLD Postcode 4129 State or territory Queensland (QLD) Localities 1 Council area Logan Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4128 · Postcode 4130