Jarvis Island Flag and Description DESCRIPTION The island is an American territory, and therefore uses the flag of the United States. all Country Flags here! Other helpful pages on WorldAtlas Country Flags List Circles of Latitude & Longitude - The Equator, The Prime Meridian, The Tropic of Cancer and Capricorn What and Where is the Ring of Fire? What Countries are in the West Indies? Trending on WorldAtlas This page was last updated on August 31, 2020.