Puerto Rico, the most populous U.S. territory, is home to approximately 3.2 million inhabitants, a notably higher number compared to other U.S. territories. Following Puerto Rico, Guam has the next largest population, with around 170,000 residents, trailed by the U.S. Virgin Islands with approximately 87,000 people. The Northern Mariana Islands and American Samoa have populations of roughly 47,000 and 45,000, respectively. In contrast, Palmyra Atoll, an incorporated U.S. territory, remains uninhabited and functions mainly as a preserved wildlife sanctuary.