Home Postcode finder NSW Ganmain Ganmain postcode NSW Ganmain is a locality in New South Wales covered by postcode 2702. Postcode 2702 State or territory New South Wales (NSW) Region Canberra Add a free Ganmain business listing More business listings in Ganmain Businesses in GanmainGanmain Public School19-41 Langham St · 02 69276421St Brendan's Primary School46 Langham St · 02 69276198 Common questionsWhat is the postcode for Ganmain?Ganmain, NSW has the postcode 2702.What state is Ganmain in?Ganmain is in New South Wales (NSW).Does postcode 2702 cover more than one suburb?No. Postcode 2702 covers Ganmain only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.