adaminaby postcode nswst Home ›› Postcode Finder ›› NSWST ›› Adaminaby Adaminaby local listingsThe suburb of Adaminaby is located in NSW and has a postcode of 2629. Free adaminaby business listing! 1Adaminaby Public School9 Cosgrove St 02 64542265 View more business listings in adaminaby Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.