| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jaffen | city | Province de Luxembourg | Belgium | 50.2166667 | 5.9666667 | 1666 | 3589 |
| Jamodenne | city | Province de Luxembourg | Belgium | 50.2166667 | 5.2833333 | 918 | 8983 |
| Jamoigne | city | Province de Luxembourg | Belgium | 49.7 | 5.4166667 | 1049 | 4016 |
| Jehonville | city | Province de Luxembourg | Belgium | 49.9 | 5.2 | 1440 | 4677 |
| Jemeppe | city | Province de Luxembourg | Belgium | 50.1833333 | 5.3166667 | 816 | 9254 |
| Jenneville | city | Province de Luxembourg | Belgium | 50 | 5.4833333 | 1499 | 4207 |
| Jodenville | city | Province de Luxembourg | Belgium | 49.9666667 | 5.6166667 | 1706 | 2670 |
| Joffen | city | Province de Luxembourg | Belgium | 50.2166667 | 5.9666667 | 1666 | 3589 |
| Journal | city | Province de Luxembourg | Belgium | 50.1166667 | 5.5 | 1446 | 2520 |
| Jupille | city | Province de Luxembourg | Belgium | 50.2166667 | 5.5333333 | 994 | 3358 |
| Juseret | city | Province de Luxembourg | Belgium | 49.8833333 | 5.55 | 1564 | 2771 |
| Juzaine | city | Province de Luxembourg | Belgium | 50.3666667 | 5.5333333 | 741 | 5503 |
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