Marion County, Oregon | |
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Marion County Courthouse in Salem
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Location in the U.S. state of Oregon |
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Oregon's location in the U.S. |
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Founded | July 5, 1843 |
Seat | Salem |
Largest city | Salem |
Area | |
• Total | 1,194 sq mi (3,092 km2) |
• Land | 1,184 sq mi (3,067 km2) |
• Water | 10 sq mi (26 km2), 0.85% |
Population (est.) | |
• (2015) | 330,700 |
• Density | 267/sq mi (103/km²) |
Congressional district | 5th |
Time zone | Pacific: UTC-8/-7 |
Website | www |
Marion County is a county located in the U.S. state of Oregon. The population was 315,335 at the 2010 census, making it the fifth-most populous county in Oregon. The county seat is Salem, the state capital. The county was originally named the Champooick District, after Champoeg (earlier Champooick), a meeting place on the Willamette River. On September 3, 1849, the territorial legislature renamed it in honor of Francis Marion, a Continental Army general from South Carolina who served in the American Revolutionary War.
Marion County is part of the Salem, OR Metropolitan Statistical Area, which is also included in the Portland-Vancouver-Salem, OR-WA Combined Statistical Area. It is located in the Willamette Valley.
Marion County was created by the Provisional Legislature of Oregon on July 5, 1843 as the Champooick District, one of the original four districts of the Oregon Country along with Twality (later Washington), Clackamas, and Yamhill counties. The four districts were redesignated as counties in 1845.