Home Postcode finder WA Tammin Tammin postcode WA Tammin is a locality in Western Australia covered by postcode 6409. Postcode 6409 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Tammin business listing More business listings in Tammin Businesses in TamminTammin Primary School2 Ridley St · 08 96371051 Common questionsWhat is the postcode for Tammin?Tammin, WA has the postcode 6409.What state is Tammin in?Tammin is in Western Australia (WA).Does postcode 6409 cover more than one suburb?Yes. Postcode 6409 covers 3 localities, so the postcode alone does not identify Tammin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.