osterley postcode nsw Home ›› Postcode Finder ›› NSW ›› Osterley Osterley local listingsThe suburb of Osterley is located in NSW and has a postcode of 2324. Free osterley business listing! 1Mt Kanwary Public School145 Hinton Rd 02 49872596 View more business listings in osterley Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.