Donald is a city in Marion County, Oregon, United States. The population was 1,009 at the 2020 census. The town grew primarily on the hop crop until the Oregon Electric Railway located a substation and depot in Donald. It was part of the railway mainline between Salem and Portland. The substation was completed in 1906. The post office was established April 13, 1910, and the town was home to the Donald Brick and Tile works from 1911 until 1923. The completion of paved Highway 99W to the west negatively affected the railway ridership. The electrified passenger service was discontinued through Donald on May 14, 1933. During this time, the population dropped from 300 to 100. In 1947 the railway transitioned to steam power and in 1948 to diesel power. In 1970 the rail line merged into Burlington Northern.
23.1% of residents were under the age of 18 and 16.9% of residents were 65 years of age or older. For every 100 females there were 105.1 males, and for every 100 females age 18 and over there were 101.0 males age 18 and over.
There were 363 households in Donald, of which 32.0% had children under the age of 18 living in them. Of all households, 54.8% were married-couple households, 16.0% were households with a male householder and no spouse or partner present, and 20.4% were households with a female householder and no spouse or partner present. About 16.8% of all households were made up of individuals and 5.8% had someone living alone who was 65 years of age or older.
! Race !! Number !! Percent
|-
| White || 734 || 72.7%
|-
| Black or African American || 9 || 0.9%
|-
| American Indian and Alaska Native || 22 || 2.2%
|-
| Asian || 13 || 1.3%
|-
| Native Hawaiian and Other Pacific Islander || 0 || 0%
|-
| Some other race || 90 || 8.9%
|-
| Two or more races || 141 || 14.0%
|-
| Hispanic or Latino (of any race) || 232 || 23.0%
|}
2010 census
As of the 2010 census, there were 979 people, 347 households, and 281 families living in the city. The population density was . There were 372 housing units at an average density of . The racial makeup of the city was 88.3% White, 0.6% African American, 0.3% Native American, 0.5% Asian, 0.3% Pacific Islander, 6.1% from other races, and 3.9% from two or more races. Hispanic or Latino of any race were 14.6% of the population.
There were 347 households, of which 35.2% had children under the age of 18 living with them, 64.3% were married couples living together, 10.1% had a female householder with no husband present, 6.6% had a male householder with no wife present, and 19.0% were non-families. 14.7% of all households were made up of individuals, and 4.3% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 3.06.
The median age in the city was 38.9 years. 23.6% of residents were under the age of 18; 8% were between the ages of 18 and 24; 26.7% were from 25 to 44; 31.9% were from 45 to 64; and 9.7% were 65 years of age or older. The gender makeup of the city was 50.2% male and 49.8% female.
2000 census
As of the 2000 census