Columbia County Map, Washington

Written and Fact-checked by | Updated On: January 16, 2026, 13:28 ET

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

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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  • Map of Columbia County, Washington

    Douglas County is a county located in the U.S. state of Wisconsin. It`s county seat is Superior. As per 2020 census, the population of Douglas County was 44203 and population density of Douglas was square miles. According to the United States Census Bureau, the county has a total area of 1,304.14 sq mi (3,378 km2). Douglas County was established on 1854.

    Facts about Columbia County, Washington

    CountryUnited States
    StateWashington
    RegionSoutheastern Washington
    County SeatDayton
    Named AfterColumbia River
    Established1875
    Organized1875
    Coordinates46.2940° N, 117.9100° W
    Total Area873 sq mi
    Land Area868 sq mi
    Water Area5 sq mi
    Population (2020)4,064
    Population RankLeast populous county in Washington
    Largest CityDayton
    Main IndustriesAgriculture, Farming, Ranching
    Major HighwaysU.S. Route 12
    Time ZonePacific Time (UTC−08:00)
    Known ForWheat farming, Blue Mountains foothills, Rural landscapes
    Websitehttps://www.columbiaco.com

    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