Scio ( SY-oh) is a city in Linn County, Oregon, United States. The population was 838 at the 2010 census.
Oregon Geographic Names suggests that Scio was named by one of the original residents, William McKinney, who, with Henry L. Turner, set up a flour mill at the new town. Turner suggested McKinney come up with a name for the place, and McKinney used the name of his former home, Scio, Ohio.
Scio in Ohio is, in turn named for a Greek island called Chios; the Italian version of the name is Scio.
Scio post office, headed by postmaster Euphronius Wheeler, was established on October 3, 1860.
Thomas Creek, which flows through the city, was named for Frederick Thomas, who obtained a Donation Land Claim and settled on the banks of the creek in 1846.
According to the United States Census Bureau, the city has a total area of 0.38 square miles (0.98 km2), all land.
This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C). According to the Köppen Climate Classification system, Scio has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
As of the census of 2010, there were 838 people, 306 households, and 225 families living in the city. The population density was 2,205.3 inhabitants per square mile (851.5/km2). There were 324 housing units at an average density of 852.6 per square mile (329.2/km2). The racial makeup of the city was 91.4% White, 0.4% African American, 1.8% Native American, 0.6% Asian, 0.1% Pacific Islander, 2.0% from other races, and 3.7% from two or more races. Hispanic or Latino of any race were 3.1% of the population.
There were 306 households, of which 35.9% had children under the age of 18 living with them, 52.3% were married couples living together, 14.7% had a female householder with no husband present, 6.5% had a male householder with no wife present, and 26.5% were non-families.