UpAlphabetical listing of Places in Costa Rica
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
| Medio Queso | city | Alajuela | Costa Rica | 10.97 | -84.62 | 114 | 2086 |
| Medios | city | Heredia | Costa Rica | 10.61 | -84.00 | 108 | 1461 |
| Mejico | city | Alajuela | Costa Rica | 11.00 | -85.06 | 121 | 7607 |
| Meneses | city | San Jose | Costa Rica | 9.97 | -83.97 | 5869 | 218956 |
| Mercede | city | Limon | Costa Rica | 10.18 | -83.61 | 311 | 6823 |
| Mercedes | city | Heredia | Costa Rica | 10.01 | -84.13 | 3667 | 198808 |
| Mercedes | city | Guanacaste | Costa Rica | 9.99 | -85.37 | 1669 | 4293 |
| Mercedes | city | San Jose | Costa Rica | 9.26 | -83.58 | 1932 | 14768 |
| Mercedes | city | Alajuela | Costa Rica | 10.31 | -84.43 | 2854 | 21981 |
| Mercedes | city | Alajuela | Costa Rica | 9.99 | -84.39 | 2509 | 28011 |
| Mercedes Norte | city | San Jose | Costa Rica | 9.84 | -84.33 | 3618 | 14407 |
| Mercedes Norte | city | Heredia | Costa Rica | 10.01 | -84.13 | 3667 | 198808 |
| Mercedes Sur | city | San Jose | Costa Rica | 9.82 | -84.36 | 3540 | 9782 |
| Mesa | city | San Jose | Costa Rica | 9.78 | -84.17 | 2519 | 13045 |
| Mesas | city | Guanacaste | Costa Rica | 11.02 | -85.63 | 830 | 1897 |
| Mesas | city | Puntarenas | Costa Rica | 9.61 | -84.37 | 997 | 4650 |
| Mesas | city | Guanacaste | Costa Rica | 10.21 | -84.91 | 879 | 4597 |
| Mesas | city | Cartago | Costa Rica | 9.88 | -83.78 | 3349 | 24047 |
| Mesas | city | San Jose | Costa Rica | 9.20 | -83.59 | 2509 | 29979 |
| Meseta | city | San Jose | Costa Rica | 9.78 | -84.15 | 3687 | 16321 |
| Mesetas | city | Puntarenas | Costa Rica | 10.04 | -84.67 | 830 | 9963 |
| Mesetas Arriba | city | Puntarenas | Costa Rica | 10.04 | -84.66 | 830 | 9527 |
| Mesón | city | Alajuela | Costa Rica | 10.10 | -84.29 | 3451 | 51743 |
| Mesón | city | San Jose | Costa Rica | 9.87 | -84.11 | 5029 | 175869 |
| Mexico | city | San Jose | Costa Rica | 9.95 | -84.08 | 3733 | 623467 |
| Mexico | city | Limon | Costa Rica | 9.98 | -83.14 | 147 | 24578 |
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