Algarrobo is a barrio located in Vega Baja, situated in the northern coastal region of the island. The barrio occupies approximately 14.07 square kilometers and forms part of Vega Baja's broader municipal geography, which extends across both coastal and inland terrain in the northern part of the Caribbean. The name Algarrobo refers to the algarrobo tree, a species historically common throughout this region, suggesting a landscape shaped by the natural vegetation and environmental conditions of the northern coast.

The terrain in this area reflects the typical characteristics of northern Puerto Rico's transition zone between coastal flatlands and the foothills that lead toward the interior. Properties in Algarrobo are likely to range from smaller residential lots to larger agricultural or mixed-use parcels, reflecting the barrio's rural to semi-rural character. The northern location places Algarrobo within an area that experiences consistent temperatures and seasonal rainfall patterns typical of this part of the island, making it suitable for both residential development and agricultural activity.

Vega Baja as a municipality has a long history tied to agriculture and coastal commerce, and Algarrobo maintains that character as one of its component barrios. Landowners in the area may find a mix of established settlements and undeveloped or sparsely developed land, with property ownership patterns reflecting the barrio's evolution over time. Access to municipal services and regional connectivity depends on proximity to Vega Baja's main centers and road networks that link to the broader northern corridor.

Property records maintained through CRIM (the Puerto Rico property registry) document the ownership, boundaries, and title history of individual parcels, and Propieda provides access to cadastral and ownership data for properties located within Algarrobo.

Vega Baja: Vega Baja, on the north coast, combines beach access with agricultural traditions and suburban growth. The municipality offers diverse properties from coastal to suburban to rural at prices below Dorado. Growing development reflects appeal to San Juan commuters seeking coastal lifestyle.