Which town did Achish king of Gath give to David to live in?

Answer: Ziklag

Achish gave David Ziklag, which afterward belonged to the kings of Judah. David lived in Philistine territory a year and four months.

“That day Achish gave him Ziklag, and to this day it still belongs to the kings of Judah.”— 1 Samuel 27:6 (BSB)