Philistia

Definition:

Philistia is the name of a large region in the land of Canaan, located along the coast of the Mediterranean Sea.

The region was located along the very fertile coastal plain reaching from Joppa in the north to Gaza in the south. It was about 64 km long and 16 km wide.
Philistia was occupied by the "Philistines," a powerful people group who were frequent enemies of the Israelites.