Postcode
Each CD has been allocated the appropriate four digit Australia Post postcode. CDs split by postcode boundaries have been allocated to the postcode area in which the majority of dwellings were counted.
For rural CDs which cover more than one postcode area, the postcode allocated is from that postcode area which is assessed by inspection of census field maps and aerial photographs to have the largest population.
All migratory CDs have been allocated postcode 0000.