mares-run postcode nswst Home ›› Postcode Finder ›› NSWST ›› Mares-Run Mares Run local listingsThe suburb of Mares Run is located in NSW and has a postcode of 2422. Free mares run business listing! Get the first free listing in mares run! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.