tumbulgum postcode nswst Home ›› Postcode Finder ›› NSWST ›› Tumbulgum Tumbulgum local listingsThe suburb of Tumbulgum is located in NSW and has a postcode of 2490. Free tumbulgum business listing! 1Tumbulgum Public School11 Fawcett St 02 66766237 View more business listings in tumbulgum Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.