Home Postcode finder VIC Knockwood Knockwood postcode VIC Knockwood is a locality in Victoria covered by postcode 3723. Postcode 3723 State or territory Victoria (VIC) Region Vic Far Country Add a free Knockwood business listing Be the first listing in Knockwood Common questionsWhat is the postcode for Knockwood?Knockwood, VIC has the postcode 3723.What state is Knockwood in?Knockwood is in Victoria (VIC).Does postcode 3723 cover more than one suburb?Yes. Postcode 3723 covers 25 localities, so the postcode alone does not identify Knockwood. Browse other postcodes in Victoria, or widen the search to every Australian postcode.