Home Postcode finder QLD Massie Massie postcode QLD Massie is a locality in Queensland covered by postcode 4370. Postcode 4370 State or territory Queensland (QLD) Region Toowoomba Region Add a free Massie business listing Be the first listing in Massie Common questionsWhat is the postcode for Massie?Massie, QLD has the postcode 4370.What state is Massie in?Massie is in Queensland (QLD).Does postcode 4370 cover more than one suburb?Yes. Postcode 4370 covers 46 localities, so the postcode alone does not identify Massie. Browse other postcodes in Queensland, or widen the search to every Australian postcode.