Home Postcode finder TAS Waterloo Waterloo postcode TAS Waterloo is a locality in Tasmania covered by postcode 7109. Postcode 7109 State or territory Tasmania (TAS) Region Tasmania Add a free Waterloo business listing Be the first listing in Waterloo Common questionsWhat is the postcode for Waterloo?Waterloo, TAS has the postcode 7109.What state is Waterloo in?Waterloo is in Tasmania (TAS).Does postcode 7109 cover more than one suburb?Yes. Postcode 7109 covers 27 localities, so the postcode alone does not identify Waterloo. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.