Home Postcodes by state NSW 2725 Postcode 2725 2725 is the postcode for Stockinbingal, NSW. Localities with postcode 2725StockinbingalNSW Postcode 2725 State or territory New South Wales (NSW) Localities 1 Council area Cootamundra-Gundagai Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2722 · Postcode 2726