Home Postcodes by state NSW Castle Rock Castle Rock postcode NSW Castle Rock is a locality in New South Wales covered by postcode 2333. Postcode 2333 State or territory New South Wales (NSW) Region Hunter Council area Muswellbrook Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Castle Rock business listing Be the first listing in Castle Rock Suburbs near Castle RockStraight-line distance between locality centres.WybongNSW 2333 · 8.5 kmMangoolaNSW 2328 · 9.0 kmBengallaNSW 2333 · 9.3 kmManobalaiNSW 2333 · 9.4 kmEddertonNSW 2333 · 12.1 kmHollydeenNSW 2328 · 12.5 kmRossgoleNSW 2336 · 12.5 kmKayugaNSW 2333 · 14.6 kmMuswellbrookNSW 2333 · 15.1 kmDenmanNSW 2328 · 15.2 kmDartbrookNSW 2336 · 16.5 kmSandy HollowNSW 2333 · 17.1 km Also in postcode 2333BaeramiNSW 2333Baerami CreekNSW 2333BengallaNSW 2333EddertonNSW 2333GungalNSW 2333KayugaNSW 2333LiddellNSW 2333ManobalaiNSW 2333Mccullys GapNSW 2333Muscle CreekNSW 2333MuswellbrookNSW 2333Sandy HollowNSW 2333WybongNSW 2333 Common questionsWhat is the postcode for Castle Rock?Castle Rock, NSW has the postcode 2333.What state is Castle Rock in?Castle Rock is in New South Wales (NSW).What council is Castle Rock in?Castle Rock is in the Muswellbrook local government area.Does postcode 2333 cover more than one suburb?Yes. Postcode 2333 covers 14 localities, so the postcode alone does not identify Castle Rock.What suburbs are near Castle Rock?The closest are Wybong (8.5 km), Mangoola (9.0 km), Bengalla (9.3 km), Manobalai (9.4 km) and Edderton (12.1 km). Distances are straight lines between locality centres. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.