Asotin County Map, Washington


Written and Fact-checked by | Updated On: February 17, 2026, 14:47 ET

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

Map of Asotin County, Washington

Map of Asotin County, Washington

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

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  • About Asotin County, Washington

    Asotin County is located in the southeastern part of Washington along the border with Idaho. Established in 1883, the county was formed from Garfield County and is named after a Nez Perce word meaning "eel creek." The county seat is Asotin, while Clarkston is the largest city and serves as the primary commercial center of the county.

    Population

    According to the United States Census Bureau, the population of Asotin County was 22,285 as recorded in the 2020 Census. The county has a relatively small population compared to many other counties in Washington, with most residents living in Clarkston and nearby communities.

    Area and Geography

    According to the United States Census Bureau, Asotin County covers a total area of approximately 641 square miles, including about 636 square miles of land and 4.4 square miles of water. The landscape includes rolling hills, river valleys, and portions of the Snake River, which forms part of the boundary with Idaho.

    Bordering Counties

    Asotin County shares borders with Garfield County to the northwest and Columbia County to the west, while its eastern and southern boundaries meet the state of Idaho.

    Major Cities and Communities

    The incorporated communities in Asotin County include Clarkston and Asotin. Clarkston serves as the economic hub of the county and is located directly across the Snake River from Lewiston, Idaho.

    Attractions and Recreation

    The Snake River is one of the county’s most significant natural features and supports boating, fishing, and outdoor recreation. Scenic canyon landscapes and nearby outdoor areas attract visitors throughout the year, offering opportunities for hiking, camping, and river activities in southeastern Washington.

    Transportation

    Major transportation routes in Asotin County include U.S. Route 12 and Washington State Route 129, which connect the county to other parts of Washington and neighboring Idaho.

    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 Asotin County Government Website.

    Facts about Asotin County, Washington

    CountryUnited States
    StateWashington
    RegionSoutheastern Washington
    County SeatAsotin
    Named AfterAsotin Creek (derived from a Nez Perce word meaning “eel creek”)
    Established1883
    Organized1883
    Coordinates46.1880° N, 117.2030° W
    Total Area641 sq mi
    Land Area636 sq mi
    Water Area5 sq mi
    Population (2020)22,285
    Population RankOne of the least populous counties in Washington
    Largest CityClarkston
    Main IndustriesAgriculture, Healthcare, Retail, Education
    Major HighwaysU.S. Route 12, State Route 129
    Time ZonePacific Time (UTC−08:00)
    Known ForSnake River, Hells Canyon access, Scenic canyons
    Websitehttps://www.co.asotin.wa.us

    Top Attractions in Asotin County, Washington

    • Hells Gate State Park – Snake River views and recreation.
    • Hells Canyon National Recreation Area – Deep canyon scenery.
    • Snake River – Boating, fishing, and rafting.
    • Asotin Creek Wildlife Area – Trails and wildlife viewing.
    • Chief Timothy State Park (nearby) – River island park.
    • Blue Mountains Scenic Area – Hiking and forest views.
    • Clarkston Riverfront – Walking paths and river access.
    • Asotin County Historical Society Museum – Local history exhibits.
    • Umatilla National Forest (nearby) – Forest recreation.
    • Grande Ronde River (nearby) – Scenic river canyon.
    • Asotin Creek Canyon – Scenic drive and fishing.
    • Clarkston Downtown – Shops and dining.

    Cities & Towns in Asotin County, Washington

    Asotin, Clarkston, Anatone, Asotin County Rural Communities