Home Postcode finder WA Thornlie Thornlie postcode WA Thornlie is a locality in Western Australia covered by postcode 6108. Postcode 6108 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Thornlie business listing More business listings in Thornlie Businesses in ThornlieAdvanced Dental Spa Thornlie60 Geographe Way, Thornlie WA 6108, Australia · (08) 9329 6828Australian Islamic College17 Tonbridge Way · 08 94932718Being Human Support Services55 Thornlie Avenue, Thornlie WA 6108, Australia · 0407 227 782 Common questionsWhat is the postcode for Thornlie?Thornlie, WA has the postcode 6108.What state is Thornlie in?Thornlie is in Western Australia (WA).Does postcode 6108 cover more than one suburb?No. Postcode 6108 covers Thornlie only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.