Isulan is located in Koronadal city, Philippines at the 6.6294, 124.605 coordinates. Distance from Isulan to other cities. are listed below, click on the city name to find distance between. Distance from Isulan to Malingao 61 km, to General Santos 85 km, to Iligan City 182 km. The green marker indicates the location of Isulan.