Home Postcode finder NSW Yellow Rock Yellow Rock postcode NSW Yellow Rock is a locality in New South Wales covered by postcode 2527. Postcode 2527 State or territory New South Wales (NSW) Region Illawarra Add a free Yellow Rock business listing More business listings in Yellow Rock Businesses in Yellow RockWardrobe World Blue Mountains375 Singles Ridge Rd, Yellow Rock NSW 2777, Australia · (02) 4754 1266 Common questionsWhat is the postcode for Yellow Rock?Yellow Rock, NSW has the postcode 2527.What state is Yellow Rock in?Yellow Rock is in New South Wales (NSW).Does postcode 2527 cover more than one suburb?Yes. Postcode 2527 covers 8 localities, so the postcode alone does not identify Yellow Rock. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.