Clatsop County, Oregon

Clatsop County
Clatsop County Courthouse in Astoria
Location within the U.S. state of Oregon
Oregon's location within the U.S.
Coordinates: 46°01′N 123°43′W / 46.01°N 123.71°W / 46.01; -123.71
Country United States
State Oregon
FoundedJune 22, 1844
Named afterClatsop Tribe
SeatAstoria
Largest cityAstoria
Area
  Total
1,084 sq mi (2,810 km2)
  Land829 sq mi (2,150 km2)
  Water255 sq mi (660 km2)  24%
Population
 (2020)
  Total
41,072
  Estimate 
(2024)
41,043
  Density38/sq mi (15/km2)
Congressional district1st
Websitewww.co.clatsop.or.us

Clatsop County (/ˈklætsəp/) is the northernmost county in the U.S. state of Oregon. As of the 2020 census, the population was 41,072. The county seat is Astoria. The county is named for the Clatsop tribe of Native Americans, who lived along the coast of the Pacific Ocean prior to European settlement. Clatsop County comprises the Astoria, OR Micropolitan Statistical Area, or Sunset Empire, and is located in Northwest Oregon.