Home Postcode finder NSWRV Kars Springs Kars Springs postcode NSWRV Kars Springs is a locality in New South Wales covered by postcode 2337. Postcode 2337 State or territory New South Wales (NSWRV) Region Hunter Add a free Kars Springs business listing Be the first listing in Kars Springs Common questionsWhat is the postcode for Kars Springs?Kars Springs, NSWRV has the postcode 2337.What state is Kars Springs in?Kars Springs is in New South Wales (NSWRV).Does postcode 2337 cover more than one suburb?Yes. Postcode 2337 covers 25 localities, so the postcode alone does not identify Kars Springs. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.