| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Jabillos | city | Alajuela | Costa Rica | 10.38 | -84.54 | 830 | 4916 |
| Jericó | city | Alajuela | Costa Rica | 10.92 | -85.15 | 232 | 15377 |
| Jesús María | city | Alajuela | Costa Rica | 9.96 | -84.59 | 830 | 9740 |
| Jicarito | city | Alajuela | Costa Rica | 10.60 | -84.71 | 830 | 3905 |
| Josefina | city | Alajuela | Costa Rica | 10.43 | -84.30 | 830 | 4544 |