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 along Interstate 5 between Portland and Salem. Oregon routes 211, 214, 219, and 99E also serve the city, as does a freight rail line from Union Pacific. Woodburn is part of the Salem Metropolitan Statistical Area, and 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 population of Russian Orthodox Old Believers.