baulkham-hills postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Baulkham-Hills Baulkham Hills local listingsThe suburb of Baulkham Hills is located in NSW and has a postcode of 2153. Free baulkham hills business listing! Get the first free listing in baulkham hills! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.