Home Postcodes by state SA 5346 Postcode 5346 5346 is the postcode for Cobdogla, SA. Localities with postcode 5346CobdoglaSA Postcode 5346 State or territory South Australia (SA) Localities 1 Council area Berri Barmera Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5345 · Postcode 5350