Isabela is located in Puerto Rico (Isabela Barrio-Pueblo) and time zone America/Puerto_Rico.
Places nearby are Quebradillas, Aguadilla and Moca.
Arecibo is 25 km away, Ponce is 63 km away and Bayamón is 70 km away as the crow flies.
Distances from Isabela to the most important cities in Puerto Rico and the world.
18.5007800°
-67.0243500°
Province in Cagayan Valley, Philippines
https://en.wikipedia.org/wiki/Isabela_(province)