| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ja da Rua | city | Leiria | Portugal | 39.86 | -8.77 | 380 | 11164 |
| Jagardo | city | Leiria | Portugal | 39.96 | -8.57 | 1046 | 7512 |
| Janardo | city | Leiria | Portugal | 39.79 | -8.78 | 830 | 38866 |
| Jardoeira | city | Leiria | Portugal | 39.67 | -8.83 | 262 | 23052 |
| Jordoes | city | Leiria | Portugal | 39.80 | -8.36 | 915 | 5201 |
| Juncal | city | Leiria | Portugal | 39.60 | -8.90 | 830 | 13395 |