Home Postcode finder WA Munster Munster postcode WA Munster is a locality in Western Australia covered by postcode 6166. Postcode 6166 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Munster business listing More business listings in Munster Businesses in MunsterSt Jerome's Primary School26 Troode St · 08 94184422 Common questionsWhat is the postcode for Munster?Munster, WA has the postcode 6166.What state is Munster in?Munster is in Western Australia (WA).Does postcode 6166 cover more than one suburb?Yes. Postcode 6166 covers 4 localities, so the postcode alone does not identify Munster. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.