newcastle postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Newcastle Newcastle local listingsThe suburb of Newcastle is located in NSW and has a postcode of 2300. Free newcastle business listing! 14WD Supacentre - NewcastleShop 2, 2364 Pacific Highway, Heatherbrae, Newcastle, New South Wales, 2324 1800 88 39 642Bottrell Medical45 Hunter Street, Newcastle NSW, Australia 02 4027 53893Furniture Removals Newcastle1 Watt St, Newcastle NSW, Australia (02) 9160 3901 View more business listings in newcastle Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.