whalan postcode nswst Home ›› Postcode Finder ›› NSWST ›› Whalan Whalan local listingsThe suburb of Whalan is located in NSW and has a postcode of 2770. Free whalan business listing! 1Halinda SchoolMimika Ave 02 967572622Madang Avenue Public SchoolMimika Ave 02 962578093Brians Pressure Cleaners35 Talasea Street 0418 468 647 View more business listings in whalan Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.