Home Postcodes by state NSW 2551 Postcode 2551 2551 is the postcode for 14 localities in NSW: Boydtown, Eden, Edrom, Green Cape, Kiah, Nadgee and 8 more. Localities with postcode 2551BoydtownNSWEdenNSWEdromNSWGreen CapeNSWKiahNSWNadgeeNSWNarrabarbaNSWNullicaNSWNungattaNSWNungatta SouthNSWTimbillicaNSWWonboynNSWWonboyn LakeNSWWonboyn NorthNSW Postcode 2551 State or territory New South Wales (NSW) Localities 14 Council area Bega Valley Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2550 · Postcode 2555