Home Postcode finder QLD Thallon Thallon postcode QLD Thallon is a locality in Queensland covered by postcode 4497. Postcode 4497 State or territory Queensland (QLD) Region Toowoomba Region Add a free Thallon business listing More business listings in Thallon Businesses in ThallonThallon State School1-13 Henry St · 07 46259139 Common questionsWhat is the postcode for Thallon?Thallon, QLD has the postcode 4497.What state is Thallon in?Thallon is in Queensland (QLD).Does postcode 4497 cover more than one suburb?Yes. Postcode 4497 covers 3 localities, so the postcode alone does not identify Thallon. Browse other postcodes in Queensland, or widen the search to every Australian postcode.