twelve-mile-peg postcode nswst Home ›› Postcode Finder ›› NSWST ›› Twelve-Mile-Peg Twelve Mile Peg local listingsThe suburb of Twelve Mile Peg is located in NSW and has a postcode of 2540. Free twelve mile peg business listing! Get the first free listing in twelve mile peg! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.