glendon-brook postcode nsw Home ›› Postcode Finder ›› NSW ›› Glendon-Brook Glendon Brook local listingsThe suburb of Glendon Brook is located in NSW and has a postcode of 2330. Free glendon brook business listing! Get the first free listing in glendon brook! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.