Home Postcode finder NSWRV Sackville Sackville postcode NSWRV Sackville is a locality in New South Wales covered by postcode 2756. Postcode 2756 State or territory New South Wales (NSWRV) Region Nepean Add a free Sackville business listing Be the first listing in Sackville Common questionsWhat is the postcode for Sackville?Sackville, NSWRV has the postcode 2756.What state is Sackville in?Sackville is in New South Wales (NSWRV).Does postcode 2756 cover more than one suburb?Yes. Postcode 2756 covers 28 localities, so the postcode alone does not identify Sackville. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.