| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ujarras | city | Guanacaste | Costa Rica | 10.22 | -85.03 | 124 | 3278 |
| Ujarráz | city | Guanacaste | Costa Rica | 10.22 | -85.03 | 124 | 3278 |
| Union | city | Guanacaste | Costa Rica | 10.72 | -85.19 | 2509 | 1639 |
| Unión | city | Guanacaste | Costa Rica | 10.50 | -84.85 | 1833 | 3817 |
| Unión Vieja | city | Guanacaste | Costa Rica | 11.15 | -85.47 | 265 | 1778 |
| Uvita | city | Guanacaste | Costa Rica | 10.24 | -85.17 | 223 | 3736 |