族裔构成(2010 年人口普查)：查莫罗人占 37.3%；菲律宾裔占 26.3%；来自其他太平洋岛屿的人占 12%；白人占 7.1%；亚洲人占 5.9%；其他族裔占 2.0%；混血人口占 9.4%。
Ethnic composition (2010 census): 37.3 per cent Chamorro; 26.3 per cent Filipino; 12.0 per cent other Pacific islanders; 7.1 per cent white; 5.9 per cent Asian; 2.0 per cent other ethnic origin; and 9.4 per cent mixed.