| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
301  | Cañ0 Cruz Can0 Cruz,Cano Cruz | Puerto Rico, Vieques | inlet elevation 1m | N 18° 7′ 19'' | W 65° 20′ 24'' |
| 302 | Caño Las Pozas Cano Las Pozas | Puerto Rico, Vega Baja | stream elevation 4m | N 18° 28′ 56'' | W 66° 22′ 51'' |
| 303 | Caño Viegues Cano Viegues,Cano Vieques | Puerto Rico, Arecibo | canal | N 18° 27′ 49'' | W 66° 41′ 9'' |
| 304 | Caño de Los Nachos Cano de Los Nachos | Puerto Rico, Manatí | canal elevation 7m | N 18° 26′ 30'' | W 66° 30′ 50'' |
| 305 | Caño de San Antonio Cano de San Antonio,San Antonio Channel | Puerto Rico, San Juan | channel | N 18° 27′ 34'' | W 66° 5′ 43'' |
| 306 | Bahía de la Chiva Bahia de la Chiva,Ensenada de la Chiba | Puerto Rico, Vieques | bay | N 18° 6′ 39'' | W 65° 23′ 10'' |
| 307 | Catarata Coca Cascada La Coca,La Coca Falls | Puerto Rico, Río Grande | overfalls elevation 489m | N 18° 19′ 7'' | W 65° 46′ 18'' |
| 308 | Comezón Cove Comezon Cove,Comezón Cove,Ensenada Comezon | Puerto Rico, Río Grande | bay | N 18° 24′ 43'' | W 65° 47′ 17'' |
| 309 | Flamingo Bay Bahia Flamenco,Flamingo Bay | Puerto Rico, Culebra | bay | N 18° 19′ 52'' | W 65° 18′ 58'' |
| 310 | Bahía de Marejada Bahia de Marejada,Surf Bay | Puerto Rico, Culebra | bay | N 18° 19′ 59'' | W 65° 18′ 0'' |
| 311 | Mayaguez Bay Bahia de Mayaguez,Mayaguez Bay | Puerto Rico, Mayagüez | bay | N 18° 12′ 7'' | W 67° 9′ 43'' |
| 312 | Bahía Montalva Bahia Montalva,Montalva Bay | Puerto Rico, Lajas | bay | N 17° 57′ 56'' | W 66° 59′ 33'' |
| 313 | Mosquito Bay Bahia Mosquito,Mosquito Bay | Puerto Rico, Culebra | bay | N 18° 17′ 37'' | W 65° 16′ 3'' |
| 314 | Alcarraza Pass Alcarraza Pass,La Pasa de la Alcarraza | Puerto Rico, Culebra | channel | N 18° 21′ 15'' | W 65° 22′ 16'' |
| 315 | Pasaje Medio Mundo Medio Mundo Passage,Pasaje de Medio Mundo | Puerto Rico, Ceiba | channel | N 18° 14′ 50'' | W 65° 36′ 6'' |
| 316 | Puerca Bay Bahia de Puerca,Puerca Bay | Puerto Rico, Ceiba | bay | N 18° 13′ 27'' | W 65° 36′ 1'' |
| 317 | Puerto del Manglar Mangrove Harbor,Puerto Mangle | Puerto Rico, Culebra | bay | N 18° 18′ 12'' | W 65° 15′ 18'' |
| 318 | Port Salinas Bahia Salinas,Port Salinas | Puerto Rico, Vieques | bay elevation 1m | N 18° 8′ 38'' | W 65° 17′ 49'' |
| 319 | San Juan Passage San Juan Channel,San Juan Passage | Puerto Rico, Fajardo | channel | N 18° 23′ 7'' | W 65° 36′ 13'' |
| 320 | Bahía de Sardinas Bahia de Sardinas,Seine Bay | Puerto Rico, Culebra | bay elevation 3m | N 18° 18′ 2'' | W 65° 18′ 13'' |
| 321 | Sardinero Anchorage Anclaje Sardinero,Sardinero Anchorage | Puerto Rico, Mayagüez Isla de Mona e Islote Monito Barrio | bay elevation 5m | N 18° 5′ 24'' | W 67° 56′ 31'' |
| 322 | Bahía Tamarindo Bahia Tamarindo,Firewood Bay | Puerto Rico, Culebra | bay | N 18° 19′ 2'' | W 65° 19′ 13'' |
| 323 | Bahía Tarja Bahia Tarja,Target Bay | Puerto Rico, Culebra | bay elevation 3m | N 18° 18′ 17'' | W 65° 18′ 43'' |
| 324 | Laguna Garay | Puerto Rico | bay elevation 12m | N 18° 19′ 5'' | W 65° 13′ 55'' |
| 325 | Arrecife Cardona | Puerto Rico, Ponce Playa Barrio | reef(s) | N 17° 57′ 27'' | W 66° 37′ 58'' |
| 326 | Canal Aguadilla | Puerto Rico, Aguadilla | canal elevation 82m | N 18° 28′ 24'' | W 67° 7′ 5'' |
| 327 | Canal de Aguuadilla | Puerto Rico, Aguadilla | canal elevation 73m | N 18° 28′ 36'' | W 67° 8′ 29'' |
| 328 | Río de las Vacas Rio de las Vacas | Puerto Rico, Peñuelas | stream elevation 789m | N 18° 7′ 22'' | W 66° 45′ 15'' |
| 329 | Río de Bayamón Rio de Bayamon | Puerto Rico, Aguas Buenas | stream elevation 248m | N 18° 14′ 52'' | W 66° 8′ 21'' |
| 330 | Río Casey Rio Casey | Puerto Rico, Las Marías | stream elevation 6m | N 18° 16′ 13'' | W 67° 7′ 4'' |
| 331 | Río De Bayamón Rio De Bayamon | Puerto Rico, Toa Alta | stream elevation 1m | N 18° 27′ 43'' | W 66° 8′ 22'' |
| 332 | Río Guavate Rio Guavate | Puerto Rico, Cayey | stream elevation 603m | N 18° 7′ 22'' | W 66° 4′ 12'' |
| 333 | Río Las Vacas Rio Las Vacas | Puerto Rico, Adjuntas | stream elevation 746m | N 18° 7′ 46'' | W 66° 44′ 58'' |
| 334 | Rio Canas (cruzando la calle Villa) | Puerto Rico | stream | N 18° 0′ 41'' | W 66° 38′ 25'' |
| 335 | Rio Pastillo (cruzando J. del Caribe, 3ra Seccion) | Puerto Rico | stream | N 18° 0′ 45'' | W 66° 38′ 53'' |
| 336 | Río Canas (entrada a la Urb. Las Delicias) | Puerto Rico | stream | N 18° 1′ 53'' | W 66° 38′ 31'' |
| 337 | Canal del Medio | Puerto Rico, Loíza | canal elevation 5m | N 18° 26′ 7'' | W 65° 55′ 30'' |
| 338 | Bahía de Añasco Bahia de Anasco | Puerto Rico, Añasco | bay | N 18° 16′ 52'' | W 67° 11′ 58'' |
| 339 | Anegado Channel | Puerto Rico, Bayamón | channel elevation 7m | N 18° 27′ 57'' | W 66° 6′ 13'' |
| 340 | Army Terminal Channel | Puerto Rico, Guaynabo | channel | N 18° 26′ 23'' | W 66° 6′ 30'' |
| 341 | Corona Reef Corona Reef | Puerto Rico, Vieques | reef(s) | N 18° 9′ 43'' | W 65° 29′ 13'' |
| 342 | Mosquito Reef Mosquito Reef | Puerto Rico, Vieques | reef(s) | N 18° 9′ 44'' | W 65° 29′ 46'' |
| 343 | Sargent Reef Sargent Reef | Puerto Rico, Maunabo | reef(s) | N 17° 59′ 3'' | W 65° 52′ 39'' |
| 344 | North Chinchorro Shoal North Chinchorro Shoal | Puerto Rico, Ceiba | shoal(s) | N 18° 15′ 12'' | W 65° 30′ 41'' |
| 345 | South Chinchorro Shoal South Chinchorro Shoal | Puerto Rico, Ceiba | shoal(s) | N 18° 14′ 11'' | W 65° 30′ 53'' |
| 346 | Evelyn Shoal Evelyn Shoal | Puerto Rico, Naguabo | shoal(s) | N 18° 9′ 13'' | W 65° 44′ 31'' |
| 347 | Bajo Snapper | Puerto Rico, Culebra | bay | N 18° 17′ 33'' | W 65° 16′ 6'' |
| 348 | Bajo Tablazo | Puerto Rico, San Juan | shoal(s) | N 18° 27′ 25'' | W 66° 7′ 19'' |
| 349 | San Juan Harbor Entrance San Juan Harbor Entrance | Puerto Rico, San Juan | channel | N 18° 28′ 19'' | W 66° 7′ 41'' |
| 350 | Boca Prieta | Puerto Rico, Cabo Rojo | bay | N 18° 2′ 55'' | W 67° 11′ 58'' |
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