Home Postcode finder QLD Bunya Mountains Bunya Mountains postcode QLD Bunya Mountains is a locality in Queensland covered by postcode 4405. Postcode 4405 State or territory Queensland (QLD) Region Toowoomba Region Add a free Bunya Mountains business listing Be the first listing in Bunya Mountains Common questionsWhat is the postcode for Bunya Mountains?Bunya Mountains, QLD has the postcode 4405.What state is Bunya Mountains in?Bunya Mountains is in Queensland (QLD).Does postcode 4405 cover more than one suburb?Yes. Postcode 4405 covers 11 localities, so the postcode alone does not identify Bunya Mountains. Browse other postcodes in Queensland, or widen the search to every Australian postcode.