macquarie-marshes postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Macquarie-Marshes Macquarie Marshes local listingsThe suburb of Macquarie Marshes is located in NSW and has a postcode of 2831. Free macquarie marshes business listing! Get the first free listing in macquarie marshes! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.