| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Aceitunas | city | Puerto Rico | United States | 18.44 | -67.06 | 830 | |
| Aceitunas Comunidad | city | Puerto Rico | United States | 18.45 | -67.07 | 830 | |
| Acevedo | city | Puerto Rico | United States | 18.26 | -66.98 | 830 | |
| Adjuntas | city | Puerto Rico | United States | 18.16 | -66.72 | 1998 | |
| Adjuntas Pueblo | city | Puerto Rico | United States | 18.16 | -66.72 | 1998 | |
| Adjuntas Zona Urbana | city | Puerto Rico | United States | 18.16 | -66.72 | 1998 | |
| Aguacate | city | Puerto Rico | United States | 18.50 | -67.11 | 193 | |
| Aguada | city | Puerto Rico | United States | 18.38 | -67.19 | 108 | |
| Aguada Zona Urbana | city | Puerto Rico | United States | 18.38 | -67.19 | 108 | |
| Aguadilla | city | Puerto Rico | United States | 18.43 | -67.15 | 830 | |
| Aguadilla Zona Urbana | city | Puerto Rico | United States | 18.44 | -67.15 | 830 | |
| Aguas Buenas | city | Puerto Rico | United States | 18.26 | -66.10 | 830 | |
| Aguas Buenas Zona Urbana | city | Puerto Rico | United States | 18.26 | -66.11 | 830 | |
| Aguas Claras | city | Puerto Rico | United States | 18.25 | -65.65 | 19 | |
| Aguas Claras Comunidad | city | Puerto Rico | United States | 18.24 | -65.67 | 32 | |
| Aguas Saladas Blancas | city | Puerto Rico | United States | 18.03 | -66.50 | 160 | |
| Aguilita | city | Puerto Rico | United States | 18.02 | -66.53 | 52 | |
| Aguilita Comunidad | city | Puerto Rico | United States | 18.03 | -66.53 | 52 | |
| Aibonito | city | Puerto Rico | United States | 18.14 | -66.27 | 2040 | |
| Aibonito Zona Urbana | city | Puerto Rico | United States | 18.14 | -66.27 | 2040 | |
| Alamar | city | Puerto Rico | United States | 18.37 | -65.72 | 157 | |
| Alatos de Fuente | city | Puerto Rico | United States | 18.20 | -66.06 | 830 | |
| Alcantavilla | city | Puerto Rico | United States | 18.48 | -66.85 | 160 | |
| Aldea Cintrón | city | Puerto Rico | United States | 18.30 | -65.64 | 29 | |
| Alegría | city | Puerto Rico | United States | 18.37 | -66.20 | 121 | |
| Algarrobo | city | Puerto Rico | United States | 17.97 | -66.09 | 26 | |
| Algarrobo | city | Puerto Rico | United States | 17.98 | -66.08 | 65 | |
| Alhambra Jerusalem | city | Puerto Rico | United States | 18.33 | -65.65 | 29 | |
| Alianza | city | Puerto Rico | United States | 18.45 | -66.85 | 390 | |
| Alianza Comunidad | city | Puerto Rico | United States | 18.45 | -66.86 | 830 | |
| Allende | city | Puerto Rico | United States | 18.40 | -66.60 | 830 | |
| Almira | city | Puerto Rico | United States | 18.44 | -66.17 | 13 | |
| Almácigo Bajo | city | Puerto Rico | United States | 18.05 | -66.87 | 255 | |
| Alta Monte | city | Puerto Rico | United States | 18.48 | -66.84 | 62 | |
| Altagracia | city | Puerto Rico | United States | 18.44 | -66.48 | 193 | |
| Altamesa | city | Puerto Rico | United States | 18.38 | -66.09 | 124 | |
| Altamira | city | Puerto Rico | United States | 18.40 | -66.10 | 68 | |
| Altavilla | city | Puerto Rico | United States | 18.35 | -66.00 | 209 | |
| Altavista | city | Puerto Rico | United States | 18.01 | -66.59 | 16 | |
| Alturas de Adjuntas | city | Puerto Rico | United States | 18.16 | -65.72 | 0 | |
| Alturas de Aguada | city | Puerto Rico | United States | 18.38 | -67.20 | 52 | |
| Alturas de Berwind | city | Puerto Rico | United States | 18.39 | -66.02 | 229 | |
| Alturas de Boriquen | city | Puerto Rico | United States | 18.36 | -66.07 | 242 | |
| Alturas de Cana | city | Puerto Rico | United States | 18.36 | -66.19 | 249 | |
| Alturas de Ciales | city | Puerto Rico | United States | 18.35 | -66.47 | 403 | |
| Alturas de Cibuco | city | Puerto Rico | United States | 18.34 | -66.33 | 337 | |
| Alturas de Cupey | city | Puerto Rico | United States | 18.36 | -66.04 | 252 | |
| Alturas de Fairview | city | Puerto Rico | United States | 18.35 | -66.02 | 219 | |
| Alturas de Flamboyan | city | Puerto Rico | United States | 18.39 | -66.15 | 42 | |
| Alturas de Florida | city | Puerto Rico | United States | 18.36 | -66.58 | 830 | |
| Alturas de Inter-Americana | city | Puerto Rico | United States | 18.37 | -66.03 | 236 | |
| Alturas de Lajas Number 1 | city | Puerto Rico | United States | 18.05 | -67.06 | 154 | |
| Alturas de Lajas Number 2 | city | Puerto Rico | United States | 18.05 | -67.06 | 88 | |
| Alturas de Peneulas | city | Puerto Rico | United States | 18.06 | -65.73 | 0 | |
| Alturas de Penuelas | city | Puerto Rico | United States | 18.06 | -66.72 | 321 | |
| Alturas de San Benito | city | Puerto Rico | United States | 18.16 | -65.85 | 91 | |
| Alturas de San Jose | city | Puerto Rico | United States | 18.09 | -66.97 | 830 | |
| Alturas de San Lorenzo | city | Puerto Rico | United States | 18.18 | -65.96 | 347 | |
| Alturas de San Sauci | city | Puerto Rico | United States | 18.36 | -66.19 | 249 | |
| Alturas de San Sauci | city | Puerto Rico | United States | 18.36 | -66.18 | 95 | |
| Alturas de Santa Maria | city | Puerto Rico | United States | 18.37 | -66.09 | 206 | |
| Alturas de Villas del Rey | city | Puerto Rico | United States | 18.22 | -66.06 | 285 | |
| Alturas de Yanes Primera Seccion | city | Puerto Rico | United States | 18.36 | -66.56 | 830 | |
| Alturas de Yanes Segunda Seccion | city | Puerto Rico | United States | 18.36 | -66.55 | 830 | |
| Amador | city | Puerto Rico | United States | 18.48 | -66.94 | 370 | |
| Amalia Marin | city | Puerto Rico | United States | 17.98 | -66.63 | 0 | |
| Amalia Marin | city | Puerto Rico | United States | 17.98 | -66.11 | 59 | |
| Amelia | city | Puerto Rico | United States | 18.43 | -66.12 | 6 | |
| Amuelas | city | Puerto Rico | United States | 18.03 | -66.51 | 252 | |
| Animas | city | Puerto Rico | United States | 18.45 | -66.63 | 246 | |
| Animas Comunidad | city | Puerto Rico | United States | 18.45 | -66.64 | 246 | |
| Anon Raices Comunidad | city | Puerto Rico | United States | 18.14 | -66.59 | 1725 | |
| Antillana | city | Puerto Rico | United States | 18.35 | -65.99 | 830 | |
| Antón Ruiz | city | Puerto Rico | United States | 18.19 | -65.81 | 101 | |
| Antón Ruíz Comunidad | city | Puerto Rico | United States | 18.19 | -65.81 | 213 | |
| Aponte | city | Puerto Rico | United States | 18.19 | -65.97 | 314 | |
| April Garden | city | Puerto Rico | United States | 18.17 | -65.87 | 344 | |
| Aquilino | city | Puerto Rico | United States | 18.26 | -67.12 | 374 | |
| Arboteda | city | Puerto Rico | United States | 18.25 | -66.04 | 170 | |
| Archilla Cabrena | city | Puerto Rico | United States | 18.19 | -67.15 | 95 | |
| Arecibo | city | Puerto Rico | United States | 18.47 | -66.72 | 6 | |
| Arecibo Gardens | city | Puerto Rico | United States | 18.46 | -66.72 | 16 | |
| Arecibo Zona Urbana | city | Puerto Rico | United States | 18.45 | -66.74 | 32 | |
| Arenal | city | Puerto Rico | United States | 17.98 | -66.32 | 9 | |
| Arenales | city | Puerto Rico | United States | 18.48 | -67.12 | 314 | |
| Arenas | city | Puerto Rico | United States | 18.45 | -65.90 | 3 | |
| Arenas | city | Puerto Rico | United States | 18.02 | -66.91 | 324 | |
| Arroyo | city | Puerto Rico | United States | 17.97 | -66.06 | 3 | |
| Arroyo Zona Urbana | city | Puerto Rico | United States | 17.97 | -66.06 | 3 | |
| Arturo Lluberas | city | Puerto Rico | United States | 18.05 | -66.86 | 255 | |
| Arús | city | Puerto Rico | United States | 18.00 | -66.53 | 22 | |
| Asomante | city | Puerto Rico | United States | 18.13 | -66.28 | 2509 | |
| Asomante | city | Puerto Rico | United States | 18.38 | -66.60 | 830 | |
| Atenas | city | Puerto Rico | United States | 18.43 | -66.48 | 285 | |
| Atlantic View | city | Puerto Rico | United States | 18.45 | -66.04 | 3 | |
| Avila | city | Puerto Rico | United States | 18.47 | -66.94 | 337 | |
| Añasco | city | Puerto Rico | United States | 18.28 | -67.14 | 32 | |
| Añasco Zona Urbana | city | Puerto Rico | United States | 18.29 | -67.14 | 32 |