Home Postcodes by state QLD 4022 Postcode 4022 4022 is the postcode for Rothwell, QLD. Localities with postcode 4022RothwellQLD Postcode 4022 State or territory Queensland (QLD) Localities 1 Council area Moreton Bay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4021 · Postcode 4025