| GeoNames Home | Postal Codes | Download / Webservice | About | 
| Name | Population | Latitude/Longitude | |
|---|---|---|---|
| 1 | San Juan   | 
418,140 | 18.466 / -66.106 | 
| 2 | Bayamón, Bayamón | 203,499 | 18.399 / -66.156 | 
| 3 | Carolina, Carolina | 170,404 | 18.381 / -65.957 | 
| 4 | Ponce   | 
137,491 | 18.01 / -66.624 | 
| 5 | Arecibo   | 
87,754 | 18.472 / -66.716 | 
| 6 | Caguas   | 
86,804 | 18.234 / -66.048 | 
| 7 | Guaynabo, Guaynabo | 81,360 | 18.357 / -66.111 | 
| 8 | Trujillo Alto   | 
75,243 | 18.355 / -66.007 | 
| 9 | Mayagüez   | 
73,077 | 18.201 / -67.14 | 
| 10 | Fajardo   | 
32,124 | 18.326 / -65.652 | 
| 11 | Levittown   | 
29,785 | 18.45 / -66.182 | 
| 12 | Vega Baja   | 
29,325 | 18.444 / -66.388 | 
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