Home Postcode finder WA Katrine Katrine postcode WA Katrine is a locality in Western Australia covered by postcode 6566. Postcode 6566 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Katrine business listing Be the first listing in Katrine Common questionsWhat is the postcode for Katrine?Katrine, WA has the postcode 6566.What state is Katrine in?Katrine is in Western Australia (WA).Does postcode 6566 cover more than one suburb?Yes. Postcode 6566 covers 10 localities, so the postcode alone does not identify Katrine. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.