Woodburn is a city in Marion County, Oregon, United States. Incorporated in 1889, the community had been platted in 1871 after the arrival of the railroad. The city is located in the northern end of the Willamette Valley between Portland and Salem. Interstate 5 connects it to major cities to the north and south. Oregon routes 211, 214, 219, and 99E also serve the city, as do Union Pacific and Willamette Valley Railway freight rail lines.
Woodburn is part of the Salem Metropolitan Statistical Area. With a population of 24,080 at the 2010 census, it is the third-most populous in that metropolitan area after Salem and Keizer. Those who identify as Hispanic or Latino make up a majority of the population in the city. The Woodburn area also has a significant historic population of Russian Orthodox Old Believers, whose ancestors settled there after the October Revolution of 1917.
Originally, the area around Woodburn was inhabited by the Kalapuya Native Americans. After the Provisional Government of Oregon set-up land claims in the Oregon Country, the United States annexed much of the Pacific Northwest and established the Oregon Territory in 1848.