Home Postcodes by state WA Koolyanobbing Koolyanobbing postcode WA Koolyanobbing is a locality in Western Australia covered by postcode 6427. Postcode 6427 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Council area Yilgarn Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Koolyanobbing business listing Be the first listing in Koolyanobbing Suburbs near KoolyanobbingStraight-line distance between locality centres.Turkey HillWA 6426 · 20.8 km Common questionsWhat is the postcode for Koolyanobbing?Koolyanobbing, WA has the postcode 6427.What state is Koolyanobbing in?Koolyanobbing is in Western Australia (WA).What council is Koolyanobbing in?Koolyanobbing is in the Yilgarn local government area.Does postcode 6427 cover more than one suburb?No. Postcode 6427 covers Koolyanobbing only, which is unusual - most Australian postcodes cover several localities.What suburbs are near Koolyanobbing?The closest are Turkey Hill (20.8 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.