Home Postcodes by state WA Williams Williams postcode WA Williams is a locality in Western Australia covered by postcode 6391. Postcode 6391 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Council area Williams Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Williams business listing More business listings in Williams Suburbs near WilliamsStraight-line distance between locality centres.DumberningWA 6312 · 16.4 kmMiniginWA 6312 · 20.7 kmDardadineWA 6392 · 24.3 km Businesses in WilliamsWilliams Primary SchoolRosselloty St · 08 98851121 Also in postcode 6391QuindanningWA 6391 Common questionsWhat is the postcode for Williams?Williams, WA has the postcode 6391.What state is Williams in?Williams is in Western Australia (WA).What council is Williams in?Williams is in the Williams local government area.Does postcode 6391 cover more than one suburb?Yes. Postcode 6391 covers 2 localities, so the postcode alone does not identify Williams.What suburbs are near Williams?The closest are Dumberning (16.4 km), Minigin (20.7 km) and Dardadine (24.3 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.