Midway Islands 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 What and Where are the Seven Seas? What Countries are in the West Indies? Major Rivers which Flow North Circles of Latitude & Longitude - The Equator, The Prime Meridian, The Tropic of Cancer and Capricorn Trending on WorldAtlas This page was last updated on August 31, 2020.