Home Postcode finder QLD Chances Plain Chances Plain postcode QLD Chances Plain is a locality in Queensland covered by postcode 4413. Postcode 4413 State or territory Queensland (QLD) Region Toowoomba Region Add a free Chances Plain business listing Be the first listing in Chances Plain Common questionsWhat is the postcode for Chances Plain?Chances Plain, QLD has the postcode 4413.What state is Chances Plain in?Chances Plain is in Queensland (QLD).Does postcode 4413 cover more than one suburb?Yes. Postcode 4413 covers 10 localities, so the postcode alone does not identify Chances Plain. Browse other postcodes in Queensland, or widen the search to every Australian postcode.