Cowlitz County | |
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Coordinates: 46°11′48″N 122°40′42″W / 46.19667°N 122.67833°W | |
Country | United States |
State | Washington |
Founded | April 21, 1854 |
Seat | Kelso |
Largest city | Longview |
Area | |
• Total | 1,166 sq mi (3,020 km2) |
• Land | 1,140 sq mi (3,000 km2) |
• Water | 26 sq mi (70 km2) 2.2% |
Population (2020) | |
• Total | 110,730 |
• Estimate (2023) | 112,864 |
• Density | 95/sq mi (37/km2) |
Time zone | UTC−8 (Pacific) |
• Summer (DST) | UTC−7 (PDT) |
Congressional district | 3rd |
Website | co.cowlitz.wa.us |
Cowlitz County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 110,730.[1] The county seat is Kelso,[2] and its largest city is Longview. The county was formed in April 1854.[3] Its name derives from the anglicized version of the Cowlitz Indian term Cow-e-liske, meaning either 'river of shifting sands' or 'capturing the medicine spirit.'[citation needed] Cowlitz comprises the Longview, WA Metropolitan statistical area, which is also included in the Portland-Vancouver-Salem, OR-WA Combined statistical area.[4]