maianbar postcode nswst Home ›› Postcode Finder ›› NSWST ›› Maianbar Maianbar local listingsThe suburb of Maianbar is located in NSW and has a postcode of 2230. Free maianbar business listing! Get the first free listing in maianbar! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.