Australian Locations that cannot be reached by Australia Post road or rail networks
- Tasmania (all)
- Christmas Island
- Cocos Keeling Islands
- Norfolk Island
- Australian Antarctic Territory
- Lord Howe Island
- Territory of Heard Island and McDonald Island
- Thursday Island
- Kerri Island
- Goods Island
- Wednesday Island
- Prince of Wales Island
- Horn Island
- Entrance Island
- Mornington Island
- South West Island
- Pellew Islands
- Sir Edward Pellew Group
- West Island
- Groote Eylandt
- Milyaburra
- Isle Woodah
- Inglis Island
- Raragala Island
- Guluwuru Island
- Drysdale Island
- Graham Island
- Cunningham Islands
- South Goulburn Island
- North Goulburn Island
- Croker Island
- Grant Island
- Minjilang
- Tiwi Islands
- Melville Island
- Bathurst Island
- Pirlangimpi
- Milikapti