Vernonia is a city in Columbia County, Oregon, United States. It is located on the Nehalem River, in a valley on the eastern side of the Northern Oregon Coast Range that is the heart of one of the most important timber-producing areas of the state. Logging has played a large role in the history of the city. The population was 2,151 at the 2010 census.
Downtown Vernonia
Vernonia during the 2007 flooding
View of the Shay locomotive in Shay Park along Rock Creek in Vernonia
Columbia County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 52,589. The county seat is St. Helens.
Columbia County Courthouse in St. Helens
Columbia County Sheriff's Office
The CC Rider transit service links the county to Portland and points in Washington County, including connecting with TriMet buses and the MAX light rail system in eastern Hillsboro.