Home Postcodes by state NSW 2631 Postcode 2631 2631 is the postcode for 12 localities in NSW: Ando, Boco, Creewah, Glen Allen, Greenlands, Holts Flat and 6 more. Localities with postcode 2631AndoNSWBocoNSWCreewahNSWGlen AllenNSWGreenlandsNSWHolts FlatNSWJincumbillyNSWKybeyanNSWMount CooperNSWNimmitabelNSWSteeple FlatNSWWinifredNSW Postcode 2631 State or territory New South Wales (NSW) Localities 12 Council area Snowy Monaro Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2630 · Postcode 2632