ZIP Code 00744 is located in Rio Blanco Puerto Rico. Portions of 00744 are also in Río Blanco and Antón Ruíz and Río Blanco and Peña Pobre and Mambiche. 00744 is primarily within Humacao Municipio, with some portions in Naguabo Municipio.
| ZIP Code Name | Rio Blanco |
| Primary County | Humacao Municipio |
| ZIP Code Type | PO Box |
| Area Code(s) | 787 / 939 |
| Current Time | AST |
| Coordinates | 18.21836281,-65.78886414 |
| Adjacent ZIP Codes | |
| Cities/Towns in 00744 | |
| Metropolitan/Micropolitan Stat Area | San Juan-Bayamón-Caguas, PR |
| Time Zone | Atlantic Standard Time |
| IANA Timezone | America/Puerto_Rico |
| Area | 7 Square Miles |
| School Districts in 00744 |