Millersburg is a city in Linn County, Oregon, United States. It was originally the name of a station on the Southern Pacific railroad line, which was named for a local farming family. The population was 2,919 at the 2020 census.
History
Millersburg came into being in 1974, to prevent the city of Albany from attempting to extend its city limits to include where Wah Chang Corporation operated a zirconium processing plant for the United States Bureau of Mines.
Although now owned by Allegheny Technologies and until recently known as ATI Wah Chang, this processing plant is the city's largest employer.
Millersburg's infamous stench of past years, often attributed to the Wah Chang facility, was actually generated by the nearby wood products processing mill owned by Weyerhaeuser, and later International Paper. At the end of 2009 International Paper closed the mill, laying off 270 employees. On July 22, 2010, the demolition of the paper mill began with the implosion of the number 4 recovery boiler. By 2012 the remainder of the mill had been demolished.
Millersburg is home to multiple industrial sites including Ti Squared Technologies, a titanium manufacturer, and Arauco, an industrial wood plant. In 2008, Peak Sun Silicon built a polysilicon production facility in Millersburg. However Peak Sun Silicon's land in Oregon was foreclosed on after they were unable to repay a loan from the Oregon Department of Energy. Timberlab, a Cross-laminated timber manufacturer broke ground on a 190,000 square foot manufacturing facility in early 2025.
In 2025 it was announced that Ball Corporation is constructing an aluminum can manufacturing plant in Millersburg, which is expected to open in mid-2026.
Geography
According to the United States Census Bureau, the city has a total area of , of which is land and is water.
Demographics
2020 census
As of the 2020 census, Millersburg had a population of 2,919. The median age was 40.2 years. 25.4% of residents were under the age of 18 and 18.0% of residents were 65 years of age or older. For every 100 females there were 101.3 males, and for every 100 females age 18 and over there were 95.4 males age 18 and over.
99.3% of residents lived in urban areas, while 0.7% lived in rural areas.
There were 1,047 households in Millersburg, of which 36.9% had children under the age of 18 living in them. Of all households, 68.9% were married-couple households, 11.0% were households with a male householder and no spouse or partner present, and 14.1% were households with a female householder and no spouse or partner present. About 15.5% of all households were made up of individuals and 7.8% had someone living alone who was 65 years of age or older.
! Race !! Number !! Percent
|-
| White || 2,518 || 86.3%
|-
| Black or African American || 5 || 0.2%
|-
| American Indian and Alaska Native || 22 || 0.8%
|-
| Asian || 47 || 1.6%
|-
| Native Hawaiian and Other Pacific Islander || 3 || 0.1%
|-
| Some other race || 75 || 2.6%
|-
| Two or more races || 249 || 8.5%
|-
| Hispanic or Latino (of any race) || 220 || 7.5%
|}
2010 census
As of the census of 2010, there were 1,329 people, 504 households, and 387 families living in the city. The population density was . There were 538 housing units at an average density of . The racial makeup of the city was 91.9% White, 0.1% African American, 1.1% Native American, 1.4% Asian, 3.0% from other races, and 2.6% from two or more races. Hispanic or Latino of any race were 6.6% of the population.
There were 504 households, of which 34.1% had children under the age of 18 living with them, 65.3% were married couples living together, 7.5% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 23.2% were non-families. 16.7% of all households were made up of individuals, and 6.4% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 2.92.
The median age in the city was 41.2 years. 23.6% of residents were under the age of 18; 5.2% were between the ages of 18 and 24; 27.2% were from 25 to 44; 30% were from 45 to 64; and 14.1% were 65 years of age or older. The gender makeup of the city was 50.6% male and 49.4% female.
2000 census
As of the census