| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jabillos | city | Provincia de Alajuela | Costa Rica | 10.3833333 | -84.55 | 547 | 6125 |
| Jerico | city | Provincia de Alajuela | Costa Rica | 10.9166667 | -85.15 | 232 | 4107 |
| Jericó | city | Provincia de Alajuela | Costa Rica | 10.9166667 | -85.15 | 232 | 4107 |
| Jesus Maria | city | Provincia de Alajuela | Costa Rica | 9.95 | -84.6 | 669 | 11099 |
| Jesús María | city | Provincia de Alajuela | Costa Rica | 9.95 | -84.6 | 669 | 11099 |
| Jicarito | city | Provincia de Alajuela | Costa Rica | 10.5666667 | -84.7166667 | 1305 | 4822 |
| Josefina | city | Provincia de Alajuela | Costa Rica | 10.4333333 | -84.3 | 600 | 5501 |
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