mountain-lagoon postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Mountain-Lagoon Mountain Lagoon local listingsThe suburb of Mountain Lagoon is located in NSW and has a postcode of 2758. Free mountain lagoon business listing! Get the first free listing in mountain lagoon! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.