yallah postcode nswst Home ›› Postcode Finder ›› NSWST ›› Yallah Yallah local listingsThe suburb of Yallah is located in NSW and has a postcode of 2530. Free yallah business listing! Get the first free listing in yallah! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.