| Code | Name | Region |
|---|---|---|
| AUJMR | Jerrabomberra | VIC |
| AUJSW | Jerry Plains | NSW |
| AUGGQ | Jerrys Plains | NSW |
| AUJEB | Jervis Bay | NSW |
| AUJIM | Jimboomba | QLD |
| AUJDP | Joondalup | WA |
| AUJCK | Julia Creek | QLD |
| AUJUN | Jundah | QLD |
| AUJNE | Junee | NSW |
| AUJUR | Jurien Bay | WA |
| AUKAD | Kadina | SA |
| AUKUD | Kalamunda | WA |
| AUQLD | Kalbar | QLD |
| AUKAX | Kalbarri | WA |
| AUKGI | Kalgoorlie | WA |
| AUKKD | Kalkadoon | QLD |
| AUV4K | Kalkallo | VIC |
| AUKFG | Kalkurung | NT |
| AUV2K | Kalorama | VIC |
| AUKPP | Kalpowar | QLD |
| AUINM | Innamincka | SA |
| AUIFL | Innisfail | QLD |
| AUIVR | Inverell | NSW |
| AUINV | Inverloch | VIC |
| AUIMY | Invermay | TAS |
| AUIVW | Inverway | NT |
| AUIPS | Ipswich | QLD |
| AUIRY | Irymple | VIC |
| AUICL | Isis Central | QLD |
| AUISI | Isisford | QLD |
| AUIHO | Ivanhoe | NSW |
| AUJAB | Jabiru | NT |
| AUJOV | Jabiru Venture (oil Terminal) | NT |
| AUJAC | Jackson | QLD |
| AUJBH | Jamboree Heights | QLD |
| AUJST | Jamestown | |
| AUJAD | Jandakot | WA |
| AUIGG | Jannali | NSW |
| AUJAR | Jarrahdale | WA |
| AUJDE | Jerilderie | NSW |
| AUHUB | Humbert River | NT |
| AUHUM | Hume | ACT |
| AUHUD | Humpty Doo | NT |
| AUHHW | Hunters Hill | NSW |
| AUHTW | Huntingwood | NSW |
| AUHVI | Huonville | TAS |
| AUGGR | Hurstbridge | VIC |
| AUHUR | Hurstville | NSW |
| AUGRO | Hurstville Grove | NSW |
| AUHYD | Hyden | WA |