Home Postcode finder WA Kalgoorlie Kalgoorlie postcode WA Kalgoorlie is a locality in Western Australia covered by postcode 6430. Postcode 6430 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Kalgoorlie business listing More business listings in Kalgoorlie Businesses in KalgoorlieAlpha Medical Center36 MacDonald St, Kalgoorlie WA 6430, Australia · 08 9092 6800Christian Aboriginal Primary SchoolSharpe Drive · 08 90912590Cloud Puff Vaporium246 Hannan St, Kalgoorlie WA 6430, Australia · 0473 530 000 Common questionsWhat is the postcode for Kalgoorlie?Kalgoorlie, WA has the postcode 6430.What state is Kalgoorlie in?Kalgoorlie is in Western Australia (WA).Does postcode 6430 cover more than one suburb?Yes. Postcode 6430 covers 14 localities, so the postcode alone does not identify Kalgoorlie. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.