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Clark County, Washington

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Clark County, Washington Map

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An detailed map of Clark County. Click on a nearby County to view more information about that County.

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Map of Counties in Washington

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An interactive map of Counties in Washington. Click on a County to view more information about that County.

About Clark County, Washington

Clark County is the southernmost county in the U.S. state of Washington. As of the 2020 census, the population was 503,311, making it Washington's fifth-most populous county. Its county seat and largest city is Vancouver. It was the first county in Washington, first named Vancouver County in 1845 before being renamed for William Clark of the Lewis and Clark Expedition in 1849. It was created by the Provisional Government of Oregon in Oregon Country on August 20, 1845, and at that time covered the entire present-day state. Clark County is the third-most-populous county in the Portland-Vancouver-Hillsboro Metropolitan Statistical Area, and is across the Columbia River from Portland, Oregon.

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This site has an interactive map of Washington Counties. Click on the map to find your Washington county, and view more details. You can also search for your address and use your GPS to find your Washington County.

Find what County you are in, and see official Washington County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.