towamba postcode nswst Home ›› Postcode Finder ›› NSWST ›› Towamba Towamba local listingsThe suburb of Towamba is located in NSW and has a postcode of 2550. Free towamba business listing! 1Towamba Public SchoolTowamba St 02 64967159 View more business listings in towamba Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.