Home Postcodes by state NSW 2423 Postcode 2423 2423 is the postcode for 20 localities in NSW: Bombah Point, Boolambayte, Bulahdelah, Bungwahl, Coolongolook, Crawford River and 14 more. Localities with postcode 2423Bombah PointNSWBoolambayteNSWBulahdelahNSWBungwahlNSWCoolongolookNSWCrawford RiverNSWMarkwellNSWMayers FlatNSWMungo BrushNSWMyall LakeNSWNerongNSWSeal RocksNSWTopi TopiNSWUpper MyallNSWViolet HillNSWWang WaukNSWWarranullaNSWWillinaNSWWoottonNSWYagonNSW Postcode 2423 State or territory New South Wales (NSW) Localities 20 Council area Mid-Coast Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2422 · Postcode 2424