Marion County
Marion County is one of the 36 counties in the U.S. state of Oregon. The population was 345,920 at the 2020 census, making it the 5th most populous county in Oregon. The county seat is Salem, which is also the state capital of Oregon. The county was originally named the Champooick District, after Champoeg, 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.
Governance bodies
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Cities and towns 19
- City of Aumsville pop. 4,248
- City of Aurora pop. 1,144
- City of Detroit pop. 194
- City of Donald pop. 1,014
- City of Gates pop. 493
- City of Gervais pop. 2,599
- City of Hubbard pop. 3,440
- City of Idanha pop. 159
- City of Jefferson pop. 3,331
- City of Keizer pop. 39,157
- City of Mount Angel pop. 3,395
- City of Salem pop. 177,723
- City of Scotts Mills pop. 421
- City of Silverton pop. 10,558
- City of St Paul pop. 431
- City of Stayton pop. 8,203
- City of Sublimity pop. 2,954
- City of Turner pop. 2,454
- City of Woodburn pop. 26,054
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 133199
- FIPS state
- 41
- FIPS county
- 047
- FIPS place
- 99047
- Census record name
- COUNTY OF MARION
- Mailing address
- PO BOX 14500, SALEM 97309