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Marion County Oregon ☎ +1 503-588-5212 Last Updated: 10/05/2025 |
| Marion County is one of the 36 counties in the U.S. state of Oregon. The population was 345,920 at the 2020 census. The county seat is Salem, which is also the state capital of Oregon. Marion County is in the heart of the Willamette Valley, with the Willamette River as its western boundary and the Cascade Range on the east. | |
| Points of Interest: State Capitol, Champoeg State Park, Silver Falls State Park, The Oregon Garden, Wheatland Ferry, Buena Vista Ferry, Detroit Dam and Santiam River, Breitenbush Hot Springs, Mount Angel Abbey, food processing plants, Willamette University, Chemeketa Community College, Willamette Heritage Center, Bush House, Deepwood House, Gilbert House Children’s Museum | |
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