Home Postcode finder QLD Groomsville Groomsville postcode QLD Groomsville is a locality in Queensland covered by postcode 4352. Postcode 4352 State or territory Queensland (QLD) Region Toowoomba Region Add a free Groomsville business listing Be the first listing in Groomsville Common questionsWhat is the postcode for Groomsville?Groomsville, QLD has the postcode 4352.What state is Groomsville in?Groomsville is in Queensland (QLD).Does postcode 4352 cover more than one suburb?Yes. Postcode 4352 covers 71 localities, so the postcode alone does not identify Groomsville. Browse other postcodes in Queensland, or widen the search to every Australian postcode.