Home Postcodes by state WA Warralakin Warralakin postcode WA Warralakin is a locality in Western Australia covered by postcode 6421. Postcode 6421 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Council area Westonia Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Warralakin business listing Be the first listing in Warralakin Suburbs near WarralakinStraight-line distance between locality centres.WarrachuppinWA 6423 · 11.0 kmChandlerWA 6490 · 20.6 km Also in postcode 6421BurracoppinWA 6421South BurracoppinWA 6421 Common questionsWhat is the postcode for Warralakin?Warralakin, WA has the postcode 6421.What state is Warralakin in?Warralakin is in Western Australia (WA).What council is Warralakin in?Warralakin is in the Westonia local government area.Does postcode 6421 cover more than one suburb?Yes. Postcode 6421 covers 3 localities, so the postcode alone does not identify Warralakin.What suburbs are near Warralakin?The closest are Warrachuppin (11.0 km) and Chandler (20.6 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.