balmain postcode nswst Home ›› Postcode Finder ›› NSWST ›› Balmain Balmain local listingsThe suburb of Balmain is located in NSW and has a postcode of 2041. Free balmain business listing! 1idetail sydney mobile car detailing44 10 Theodore st 04216420182Balmain Lilyfield Montessori School44 Smith St 02 955578033Balmain Public School1 Eaton St 02 98181177 View more business listings in balmain Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.