shellharbour postcode nsw Home ›› Postcode Finder ›› NSW ›› Shellharbour Shellharbour local listingsThe suburb of Shellharbour is located in NSW and has a postcode of 2529. Free shellharbour business listing! 1Illawarra Sule College399 Shellharbour Rd 02 429660002Shellharbour Public School51 Mary St 02 429513343Stella Maris Primary SchoolWentworth St 02 42964606 View more business listings in shellharbour Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.