İsaköy is a village in Cide District, in Kastamonu Province, Türkiye. İsaköy lies at 147 m above sea level, in the Küre mountains. It has 118 inhabitants. The nearest city is Bartın, 53 km to the west. Beaches nearby: Gebeş (3.2 km). Among the landmarks around are Cromna (15.6 km), Cytorus (4.6 km) and Kirazlıköprü Dam (13.4 km). Among the natural features are Dağlı Kuylucu Cave (16.3 km).