charlestown postcode nswbu Home ›› Postcode Finder ›› NSWBU ›› Charlestown Charlestown local listingsThe suburb of Charlestown is located in NSW and has a postcode of 2290. Free charlestown business listing! 1123 Financial GroupSmith Street, Charlestown NSW, Australia 02 4920 78862Awesome Water Filters1 Pillapai Street, Charlestown NSW 2290, Australia 1800 789 7813MCG Quantity SurveyorsSuite 1/29 Smith Street, Charlestown, New South Wales, 2290 1300 795 170 View more business listings in charlestown Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.