Home Postcode finder WA Karratha Karratha postcode WA Karratha is a locality in Western Australia covered by postcode 6714. Postcode 6714 State or territory Western Australia (WA) Region North West Suburbs Add a free Karratha business listing More business listings in Karratha Businesses in KarrathaHearing & Audiology WAKarratha Central Health Care · 08 9388 8003Joyce KraneLot 3911 Coolawanyah Rd, Karratha Industrial Estate WA, Australia · (08) 9185 2430Land Surveys12 Sharpe Avenue, Karratha WA, Australia · (08) 9143 1744 Common questionsWhat is the postcode for Karratha?Karratha, WA has the postcode 6714.What state is Karratha in?Karratha is in Western Australia (WA).Does postcode 6714 cover more than one suburb?Yes. Postcode 6714 covers 20 localities, so the postcode alone does not identify Karratha. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.