Home Postcode finder QLD Balgowan Balgowan postcode QLD Balgowan is a locality in Queensland covered by postcode 4401. Postcode 4401 State or territory Queensland (QLD) Region Toowoomba Region Add a free Balgowan business listing Be the first listing in Balgowan Common questionsWhat is the postcode for Balgowan?Balgowan, QLD has the postcode 4401.What state is Balgowan in?Balgowan is in Queensland (QLD).Does postcode 4401 cover more than one suburb?Yes. Postcode 4401 covers 16 localities, so the postcode alone does not identify Balgowan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.