The original inhabitants of Koh Kood were Thais and Cambodians who fled to the Thai territory The oldest community is Klong Mad Village whose residents still make a living out of planting rubber trees, cultivation of coconuts and basic fisheries. But the biggest community on Koh Kood is Ao Yai Village. Koh Kood has an essential infrastructure which includes a hospital, couple of schools, a police station, electricity , water and telephone system. Fuel and solar energy are the main source of power on the island.