londonderry postcode nswst Home ›› Postcode Finder ›› NSWST ›› Londonderry Londonderry local listingsThe suburb of Londonderry is located in NSW and has a postcode of 2753. Free londonderry business listing! 1MIRROR Floor Sanding 422 Blacktown Rd 04184198372Londonderry Public School533 Londonderry Rd 02 457819003Mirror Floor Sanding422 1300 136 148 View more business listings in londonderry Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.