Clackamas County, Oregon
Clackamas County | |
|---|---|
Location within the U.S. state of Oregon | |
Oregon's location within the U.S. | |
| Coordinates: 45°11′N 122°13′W / 45.19°N 122.21°W | |
| Country | United States |
| State | Oregon |
| Founded | July 5, 1843 |
| Named after | Clackamas people |
| Seat | Oregon City |
| Largest city | Lake Oswego |
| Area | |
• Total | 1,883 sq mi (4,880 km2) |
| • Land | 1,870 sq mi (4,800 km2) |
| • Water | 13 sq mi (30 km2) 0.7% |
| Population (2020) | |
• Total | 421,401 |
• Estimate (2024) | 425,857 |
| • Density | 220/sq mi (86/km2) |
| Time zone | UTC−8 (Pacific) |
| • Summer (DST) | UTC−7 (PDT) |
| Congressional districts | 3rd, 5th, 6th |
| Website | www |
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Clackamas County (/ˈklækəməs/ CLAK-ə-məss) is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 421,401, making it Oregon's third-most populous county. Its county seat is Oregon City. The county was named after the native people living in the area at the time of the coming of Europeans, the Clackamas people, who are part of the Chinookan peoples.
Clackamas County is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. It is in the Willamette Valley.