Metolius is a city in Jefferson County, Oregon, United States. The city is named for the Metolius River, a nearby tributary of the Deschutes River. The name for both comes from the Warm Springs word for "white fish", referring to a light colored salmon and not a whitefish. The population was 880 at the 2010 census. As of the census of 2000, there were 635 people, 214 households, and 161 families residing in the city. The population density was 1,549.7 people per square mile (598.0/km²). There were 220 housing units at an average density of 536.9 per square mile (207.2/km²). The racial makeup of the city was 77.17% White, 0.16% African American, 2.05% Native American, 0.63% Asian, 13.23% from other races, and 6.77% from two or more races. Hispanic or Latino of any race were 22.68% of the population.