Sheridan is a city in Yamhill County, Oregon, United States. Platted in the 1860s when it received a post office, the city was incorporated in 1880. A major fire burned much of the city in 1913, and a flood covered much of the city in 1964. The population of the city as of the 2010 Census was 6,127, an increase from 3,570 at the 2000 census. However, the 2000 Census count failed to include those incarcerated at the federal prison in the city, while the newer count did include those inmates.
According to the United States Census Bureau, the city has a total area of 2.01 square miles (5.21 km), of which, 1.96 square miles (5.08 km) is land and 0.05 square miles (0.13 km) is water.
The South Yamhill River divides the city between north and south, and is prone to flooding the city. Deer Creek is the only other stream in the city. Sheridan is located in the western part of the Willamette Valley at an elevation of 189 feet (58 m) above sea level. The city lies at the foothills of the Northern Oregon Coast Range.
Surrounding cities include Willamina about 2 miles (3.2 km) to the west along Oregon 18B, Amity about 9 miles (14 km) due east, and McMinnville about 12 miles (19 km) to the northeast. Other communities include Ballston to the southeast, Shipley due west, Red Prairie to the south, the Gopher Valley to the north and east, and Bellevue to the northeast along Oregon 18. Sheridan is about one-and-a-half miles north of the Polk County line, with the county seat of Dallas approximately 11 miles (18 km) south of Sheridan.
As of the census of 2010, there were 6,127 people, 1,543 households, and 1,085 families residing in the city. The population density was 3,126.0 inhabitants per square mile (1,207.0/km). There were 1,671 housing units at an average density of 852.6 per square mile (329.2/km). The racial makeup of the city was 74.9% White, 5.5% African American, 4.8% Native American, 2.1% Asian, 0.7% Pacific Islander, 7.6% from other races, and 4.4% from two or more races. Hispanic or Latino of any race were 16.6% of the population.
There were 1,543 households of which 41.0% had children under the age of 18 living with them, 48.0% were married couples living together, 15.4% had a female householder with no husband present, 6.9% had a male householder with no wife present, and 29.7% were non-families. 23.0% of all households were made up of individuals and 8.9% had someone living alone who was 65 years of age or older. The average household size was 2.77 and the average family size was 3.22.
The median age in the city was 35.7 years. 20.5% of residents were under the age of 18; 8.8% were between the ages of 18 and 24; 38% were from 25 to 44; 23.8% were from 45 to 64; and 8.9% were 65 years of age or older. The gender makeup of the city was 63.8% male and 36.2% female.
The average household size was 2.92, while the median income for a household in the city was $49,940.
Sheridan Oregon neighborhoods include: Buell, Deer Creek, Red Prairie, Rock Creek Rd, Sheridan, Willamina