Cowlitz County photograph

Cowlitz County

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Area3020
Population106,910 (2017)
County seat Kelso
Rivers Cowlitz River
Columbia River
Lewis River
Green River
Points of interest Mt St Helens Visitor Center
Date of Reg.
Date of Upd.
ID1012808
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About Cowlitz County


Cowlitz County is a county located in the U. S. state of Washington. As of the 2010 census, its population was 102,410. The county seat is Kelso, and its largest city is Longview. The county was formed in April 1854.

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