The primary coordinate point for Guaynabo is located at latitude 18.3575 and longitude -66.111 in Guaynabo Municipio.
The formal boundaries for the Guaynabo encompass a land area of 12.04 sq. miles and a water area of 0.17 sq. miles.
Guaynabo Municipio is in the Atlantic time zone (GMT -4).
The Guaynabo has a U5 Census Class Code which indicates populated place that is also a census designated place with the same name. It also has a Functional Status Code of "S" which identifies a statistical entity.