avoca postcode nsw Home ›› Postcode Finder ›› NSW ›› Avoca Avoca local listingsThe suburb of Avoca is located in NSW and has a postcode of 2577. Free avoca business listing! 1Avoca Public SchoolSheepwash Rd 02 48877224 View more business listings in avoca Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.