Puerto Rico Highway 37 (PR-37) is an urban road between San Juan (in Santurce area) and Carolina (in Isla Verde area).

Also, on this road lies the Luis Llorens Torres public housing.

Among their intersections are the PR-187, to Piñones (tourist area of Loíza), PR-26 (Expreso Baldorioty de Castro), PR-25 (Avenida Juan Ponce de León) and PR-35 (Avenida Manuel Fernández Juncos).

Near PR-37 is PR-22 (Autopista José de Diego), which can be accessed from this road.

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