hamilton postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Hamilton Hamilton local listingsThe suburb of Hamilton is located in NSW and has a postcode of 2303. Free hamilton business listing! 1St Francis Xaviers College282 Parkway Ave 02 496128632Newcastle High SchoolPark Way Ave 02 496931773Hamilton Public SchoolTudor St 02 49693577 View more business listings in hamilton Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.