merewether-heights postcode nswst Home ›› Postcode Finder ›› NSWST ›› Merewether-Heights Merewether Heights local listingsThe suburb of Merewether Heights is located in NSW and has a postcode of 2291. Free merewether heights business listing! Get the first free listing in merewether heights! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.