The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI), is a commonwealth in political union with the United States, occupying a strategic region of the western Pacific Ocean. It consists of 15 islands about three-quarters of the way from Hawaii to the Philippines. The United States Census Bureau reports the total land area of all islands as 179.01 square miles (463.63 km2).

The Northern Mariana Islands has a population of 80,362 (2005 estimate). The official 2000 census count was 69,221. More than 90% of the population lives on the island of Saipan. Of the fourteen other islands, only two — Tinian and Rota — have a significant population. The islands of Agrihan and Alamagan have fewer than ten residents each, and the remaining islands are unpopulated.