San Juan County Map, Washington


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

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

Map of San Juan County, Washington

Map of San Juan County, Washington

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

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  • About San Juan County, Washington

    San Juan County is located in the northwestern part of Washington, United States, and consists primarily of the San Juan Islands in the Salish Sea near the border with Canada. Established in 1873, the county was named after the islands originally charted by Spanish explorers. The county seat is Friday Harbor, which serves as the administrative and commercial center of the islands.

    Population

    According to the United States Census Bureau, the population of San Juan County was 17,788 as recorded in the 2020 Census. The county has a relatively small population spread across several inhabited islands, with most residents living on San Juan Island, Orcas Island, and Lopez Island.

    Area and Geography

    According to the United States Census Bureau, San Juan County covers a total area of approximately 621 square miles, including about 174 square miles of land and 447 square miles of water. The county is characterized by coastal shorelines, marine waters, and island terrain within the Salish Sea.

    Bordering Counties

    San Juan County shares marine boundaries with Skagit County to the east and Whatcom County to the northeast, while its northern waters meet Canada.

    Major Cities and Communities

    The principal community in San Juan County is Friday Harbor, which serves as the county seat. Other island communities include Eastsound on Orcas Island and Lopez Village on Lopez Island.

    Attractions and Recreation

    San Juan County is known for scenic coastal landscapes, marine wildlife, and outdoor recreation. Activities such as whale watching, kayaking, sailing, and hiking attract visitors throughout the year. The islands are also recognized for their natural beauty and peaceful setting.

    Transportation

    Transportation in San Juan County primarily relies on ferry services connecting the islands to the mainland, along with small regional airports serving local communities.

    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 San Juan County Government Website.

    Facts about San Juan County, Washington

    CountryUnited States
    StateWashington
    RegionNorthwestern Washington
    County SeatFriday Harbor
    Named AfterSan Juan Islands (named by Spanish explorers)
    Established1873
    Organized1873
    Coordinates48.5790° N, 123.0990° W
    Total Area621 sq mi
    Land Area174 sq mi
    Water Area447 sq mi
    Population (2020)17,788
    Population RankSmaller county in Washington
    Largest CityFriday Harbor
    Main IndustriesTourism, Marine Services, Agriculture, Arts
    Major TransportationWashington State Ferries, Regional airports
    Time ZonePacific Time (UTC−08:00)
    Known ForSan Juan Islands, Orca whale watching, Scenic coastlines
    Websitehttps://www.sanjuancountywa.gov

    Top Attractions in San Juan County, Washington

    • San Juan Islands – Scenic islands and coastal views.
    • Friday Harbor – Harbor town with shops and dining.
    • Lime Kiln Point State Park – Whale watching and lighthouse.
    • San Juan Island National Historical Park – Historic sites and trails.
    • Whale Watching Tours – Orca and marine life viewing.
    • English Camp – Historic military site.
    • American Camp – Open landscapes and coastal hikes.
    • San Juan County Park – Waterfront camping and beaches.
    • Roche Harbor Resort – Marina and historic buildings.
    • Pelindaba Lavender Farm – Lavender fields and products.
    • Westcott Bay Shellfish Farm – Oysters and farm tours.
    • Jackson Beach – Quiet beach and tide pools.

    Cities & Towns in San Juan County, Washington

    Friday Harbor, Orcas, Lopez, Shaw Island, San Juan Island, Waldron Island, Blakely Island, Stuart Island