cassilis postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Cassilis Cassilis local listingsThe suburb of Cassilis is located in NSW and has a postcode of 2329. Free cassilis business listing! 1Cassilis Public SchoolCoolah St 02 63761009 View more business listings in cassilis Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.