Home Postcode finder QLD Myall Park Myall Park postcode QLD Myall Park is a locality in Queensland covered by postcode 4415. Postcode 4415 State or territory Queensland (QLD) Region Toowoomba Region Add a free Myall Park business listing Be the first listing in Myall Park Common questionsWhat is the postcode for Myall Park?Myall Park, QLD has the postcode 4415.What state is Myall Park in?Myall Park is in Queensland (QLD).Does postcode 4415 cover more than one suburb?Yes. Postcode 4415 covers 8 localities, so the postcode alone does not identify Myall Park. Browse other postcodes in Queensland, or widen the search to every Australian postcode.