trewilga postcode nsw Home ›› Postcode Finder ›› NSW ›› Trewilga Trewilga local listingsThe suburb of Trewilga is located in NSW and has a postcode of 2869. Free trewilga business listing! Get the first free listing in trewilga! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.