Home Postcodes by state NSW 2357 Postcode 2357 2357 is the postcode for 11 localities in NSW: Bomera, Box Ridge, Bugaldie, Coonabarabran, Dandry, Gowang and 5 more. Localities with postcode 2357BomeraNSWBox RidgeNSWBugaldieNSWCoonabarabranNSWDandryNSWGowangNSWPurlewaughNSWRocky GlenNSWTannabarNSWUlamambriNSWWattle SpringsNSW Postcode 2357 State or territory New South Wales (NSW) Localities 11 Council area Warrumbungle Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2356 · Postcode 2358