Common Mistakes in Postal Codes and How to Correct Them

Contents
Source of Correct Postal Code............................................................................................1
Mistake 1........................................................................................................................... 2
Mistake 2........................................................................................................................... 4
Mistake 3........................................................................................................................... 5
Mistake 4........................................................................................................................... 6
Mistake 5........................................................................................................................... 8

Source of Correct Postal Code
We searched internet and found the correct postal code information on Wikipedia.
Information we found on Wikipedia (En.wikipedia.org, 2018) is given below:
State/Territory Abbreviation Postcode range
New South Wales NSW
1000—1999 (LVRs and PO Boxes only)
2000—2599
2619—2899
2921—2999
Australian Capital Territory ACT
0200—0299 (LVRs and PO Boxes only)
2600—2618
2900—2920
Victoria VIC 3000—3999
8000—8999 (LVRs and PO Boxes only)
Queensland QLD 4000—4999
9000—9999 (LVRs and PO Boxes only)
South Australia SA 5000—5799
5800—5999 (LVRs and PO Boxes only)
Western Australia WA 6000—6797
6800—6999 (LVRs and PO Boxes only)
Tasmania TAS 7000—7799
7800—7999 (LVRs and PO Boxes only)
Northern Territory NT 0800—0899
0900—0999 (LVRs and PO Boxes only)
Besides the above information, we also found (on Wikipedia) that there are certain
exceptions to the above table. These exceptions are given below:
Postcode Locality State derived from Actual State
Postcode ranges for this locality
4825 ALPURRURULAM QLD NT
0872 ERNABELLA NT SA
0872 FREGON NT SA
0872 INDULKANA NT SA
0872 MIMILI NT SA
0872 NGAANYATJARRA-GILES NT WA
0872 GIBSON DESERT NORTH NT WA
0872 GIBSON DESERT SOUTH NT WA
2406 MUNGINDI NSW QLD
2540 HMAS CRESWELL NSW Jervis Bay Territory
2540 JERVIS BAY NSW Jervis Bay Territory
2611 COOLEMAN ACT NSW

2611 BIMBERI ACT NSW
2611 BRINDABELLA ACT NSW
2611 URIARRA ACT NSW
2620 HUME NSW ACT
2620 KOWEN FOREST NSW ACT
2620 OAKS ESTATE NSW ACT
2620 THARWA NSW ACT
2620 TOP NAAS NSW ACT
3500 PARINGI VIC NSW
3585 MURRAY DOWNS VIC NSW
3586 MALLAN VIC NSW
3644 BAROOGA VIC NSW
3644 LALALTY VIC NSW
3691 LAKE HUME VILLAGE VIC NSW
3707 BRINGENBRONG VIC NSW
4380 MINGOOLA QLD NSW
4377 MARYLAND QLD NSW
After finding the relevant information about the post code, we started search for mistake.
Mistake 1
First of all, we applied logic to check to find any blank field for state. Relevant screenshot
are given below: