avalon postcode nsw Home ›› Postcode Finder ›› NSW ›› Avalon Avalon local listingsThe suburb of Avalon is located in NSW and has a postcode of 2107. Free avalon business listing! 1Maria Regina Primary School42 Central Rd 02 991826082The Muscle Technician15 51 Old Barrenjoey Road 0416 175 6043KU Avalon Preschool118a Avalon Pde 02 9918 6583 View more business listings in avalon Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.