Home Postcodes by state NSW 2727 Postcode 2727 2727 is the postcode for 3 localities in NSW: Adjungbilly, Coolac and Gobarralong. Localities with postcode 2727AdjungbillyNSWCoolacNSWGobarralongNSW Postcode 2727 State or territory New South Wales (NSW) Localities 3 Council area Cootamundra-Gundagai Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2726 · Postcode 2729