Home Postcode finder NSWDL Frog Rock Frog Rock postcode NSWDL Frog Rock is a locality in New South Wales covered by postcode 2850. Postcode 2850 State or territory New South Wales (NSWDL) Region NSW Country West Add a free Frog Rock business listing Be the first listing in Frog Rock Common questionsWhat is the postcode for Frog Rock?Frog Rock, NSWDL has the postcode 2850.What state is Frog Rock in?Frog Rock is in New South Wales (NSWDL).Does postcode 2850 cover more than one suburb?Yes. Postcode 2850 covers 77 localities, so the postcode alone does not identify Frog Rock. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.