Columbia County Map, Washington

Map of Columbia County - Columbia County is a county located in the U.S. state of Washington. Columbia County Map showing cities, highways, important places and water bodies. Get Where is Columbia County located in the map, major cities in Columbia county, population, areas, and places of interest.

Map of Columbia County, Washington

About Columbia County Map, Alabama: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About Columbia County, Washington

Columbia County is located in the southeastern part of Washington, United States. Established in 1875, the county was named after the Columbia River, which flows through the Pacific Northwest region. The county seat and largest city is Dayton, which serves as the administrative and economic center of this largely rural county.

Population

According to the United States Census Bureau, the population of Columbia County was 3,952 as recorded in the 2020 Census. It is one of the least populous counties in Washington, with a strong agricultural base and small, close-knit communities.

Area and Geography

According to the United States Census Bureau, Columbia County covers a total area of approximately 873 square miles, including about 868 square miles of land and 5 square miles of water. The county is characterized by rolling wheat fields, river valleys, and rural landscapes typical of southeastern Washington.

Bordering Counties

Columbia County shares borders with Garfield County to the north, Walla Walla County to the south, and Asotin County to the east. The county also borders the state of Oregon to the south.

Major Cities and Communities

The primary incorporated city in Columbia County is Dayton, which serves as the county seat. Other small communities and rural areas support the county’s agricultural economy.

Attractions and Recreation

Columbia County offers outdoor recreation opportunities including hiking, fishing, and camping in its river valleys and scenic countryside. The Tucannon River area is known for fishing and wildlife viewing, while historic downtown Dayton reflects the county’s heritage and early settlement history.

Transportation

Major transportation routes serving Columbia County include U.S. Route 12 and State Route 261, connecting the county to neighboring communities and other parts of Washington.

Explore more counties in Washington Counties or view the complete USA States Map section for additional geographic information.

Sources:

Population and area data sourced from the United States Census Bureau (2020 Census). General county information referenced from the Official Columbia County Government Website.

Facts about Columbia County, Washington

Top Attractions in Columbia County, Washington

• Palouse Falls State Park (nearby) – Dramatic waterfall views.
• Tucannon River – Fishing and scenic river valley.
• Tucannon River State Park – Camping and hiking.
• Blue Mountains – Mountain scenery and trails.
• Dayton Historic District – Shops and 19th-century buildings.
• Columbia County Historical Society Museum – Local history exhibits.
• Smith Hollow Country Schoolhouse – Preserved historic school.
• Dayton Depot – Historic railroad depot.
• Lyons Ferry State Park (nearby) – Snake River recreation.
• Patit Creek – Fishing and rural scenery.
• Waitsburg Historic Area (nearby) – Small-town charm.
• Columbia Plateau Farmlands – Rolling agricultural landscapes.

Cities & Towns in Columbia County, Washington

Dayton, Starbuck, Pomeroy, Waitsburg, Prescott, Tucannon, Kahlotus, Columbia County Rural Communities