Home Postcode finder QLD Jackson North Jackson North postcode QLD Jackson North is a locality in Queensland covered by postcode 4426. Postcode 4426 State or territory Queensland (QLD) Region Toowoomba Region Add a free Jackson North business listing Be the first listing in Jackson North Common questionsWhat is the postcode for Jackson North?Jackson North, QLD has the postcode 4426.What state is Jackson North in?Jackson North is in Queensland (QLD).Does postcode 4426 cover more than one suburb?Yes. Postcode 4426 covers 3 localities, so the postcode alone does not identify Jackson North. Browse other postcodes in Queensland, or widen the search to every Australian postcode.