Home Postcodes by state NSW 2839 Postcode 2839 2839 is the postcode for 7 localities in NSW: Bogan, Brewarrina, Collerina, Gongolgon, Narran Lake, Talawanta and 1 more. Localities with postcode 2839BoganNSWBrewarrinaNSWCollerinaNSWGongolgonNSWNarran LakeNSWTalawantaNSWWeilmoringleNSW Postcode 2839 State or territory New South Wales (NSW) Localities 7 Council area Brewarrina Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2836 · Postcode 2840