Puerto Rico Highway 5 (PR-5) is a main highway in the San Juan Metropolitan area which connects the cities of Cataño to Bayamón and is being extended and converted to a tollway to access the municipalities of Naranjito and Comerío. It is a short freeway from south Cataño to the business area in Bayamón. It makes intersections with PR-22, PR-6, PR-2 and PR-199, where it ends at this time. The highway will parallel PR-167 and will contain the new cable-stayed bridge being built between Bayamón and Naranjito. It will probably end in Puerto Rico highway 152 when completed.

Cataño is a town and municipality located on the northeastern coast of Puerto Rico, bordering the San Juan Bay and the Atlantic Ocean, and adjacent to the north and east by San Juan; north of Bayamón and Guaynabo; east of Toa Baja and west of Guaynabo and is part of the San Juan Metropolitan Area. Cataño is spread over 7 barrios and Cataño Pueblo. It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.