Home Postcode finder QLD Wellesley Wellesley postcode QLD Wellesley is a locality in Queensland covered by postcode 4417. Postcode 4417 State or territory Queensland (QLD) Region Toowoomba Region Add a free Wellesley business listing Be the first listing in Wellesley Common questionsWhat is the postcode for Wellesley?Wellesley, QLD has the postcode 4417.What state is Wellesley in?Wellesley is in Queensland (QLD).Does postcode 4417 cover more than one suburb?Yes. Postcode 4417 covers 7 localities, so the postcode alone does not identify Wellesley. Browse other postcodes in Queensland, or widen the search to every Australian postcode.