File:Marion_County_Courthouse_Salem_Oregon.JPG · Wikimedia Commons · See Wikimedia Commons
Marion County
Sign in to saveAlso known as Champooick District, Marion County, Oregon, Marion County, OR
county in Oregon, United States
Key facts
- Country
- United States
- State
- Oregon
- Founded
- July 5, 1843
- Named after
- Francis Marion
- Seat
- Salem
- Largest city
- Salem
- Total
- 1,194 sq mi (3,090 km )
- Land
- 1,184 sq mi (3,070 km )
- Water
- 10 sq mi (26 km ) 0.85%
- Estimate 2025
- 355,777
- Density
- 292.2/sq mi (112.8/km )
- Time zone
- UTC−8 ( Pacific )
- Summer dst
- UTC−7 ( PDT )
- Congressional districts
- 2nd , 5th , 6th
- Website
- www .co .marion .or .us
via Wikipedia infobox
Wikidata facts
- Population
- 345920
- Area
- 3093
- Official website
- www.co.marion.or.us
- Image
- Marion County Courthouse Salem Oregon.JPG
- Households
- 120474
Show 5 more facts
- Commons category
- Marion County, Oregon
- inception
- 1843-00-00
- water as percent of area
- 0.85
- native label
- Marion County
- per capita income
- 28856
Sources (8)
via Wikidata · CC0
~12 min read
Article
Map of 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 (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.