Home Postcode finder QLD Dulacca Dulacca postcode QLD Dulacca is a locality in Queensland covered by postcode 4425. Postcode 4425 State or territory Queensland (QLD) Region Toowoomba Region Add a free Dulacca business listing More business listings in Dulacca Businesses in DulaccaDulacca State SchoolNorth Rd · 07 46276155 Common questionsWhat is the postcode for Dulacca?Dulacca, QLD has the postcode 4425.What state is Dulacca in?Dulacca is in Queensland (QLD).Does postcode 4425 cover more than one suburb?Yes. Postcode 4425 covers 2 localities, so the postcode alone does not identify Dulacca. Browse other postcodes in Queensland, or widen the search to every Australian postcode.