Home Postcode finder WA Exmouth Gulf Exmouth Gulf postcode WA Exmouth Gulf is a locality in Western Australia covered by postcode 6707. Postcode 6707 State or territory Western Australia (WA) Region North West Suburbs Add a free Exmouth Gulf business listing Be the first listing in Exmouth Gulf Common questionsWhat is the postcode for Exmouth Gulf?Exmouth Gulf, WA has the postcode 6707.What state is Exmouth Gulf in?Exmouth Gulf is in Western Australia (WA).Does postcode 6707 cover more than one suburb?Yes. Postcode 6707 covers 5 localities, so the postcode alone does not identify Exmouth Gulf. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.