Home Postcode finder QLD Blue Mountain Heights Blue Mountain Heights postcode QLD Blue Mountain Heights is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Blue Mountain Heights business listing Be the first listing in Blue Mountain Heights Common questionsWhat is the postcode for Blue Mountain Heights?Blue Mountain Heights, QLD has the postcode 4350.What state is Blue Mountain Heights in?Blue Mountain Heights is in Queensland (QLD).Does postcode 4350 cover more than one suburb?Yes. Postcode 4350 covers 43 localities, so the postcode alone does not identify Blue Mountain Heights. Browse other postcodes in Queensland, or widen the search to every Australian postcode.