Overview: All economic activity is concentrated on the largest island of Diego Garcia, where joint UK-US defense facilities are located. Construction projects and various services needed to support the military installations are done by military and contract employees from the UK and US. There are no industrial or agricultural activities on the islands.

Electricity: provided by the US military

NOTE: The information regarding British Indian Ocean Territory on this page is re-published from the 1989 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of British Indian Ocean Territory Economy 1989 information contained here. All suggestions for corrections of any errors about British Indian Ocean Territory Economy 1989 should be addressed to the CIA.