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Reports of Lyme Disease in Whatcom County, Washington

22

Confirmed cases of Lyme disease in Whatcom County (2000 to 2020).

Ranked #5 of 39 counties in Washington. That's 5% of Washington's 443 confirmed cases.

Yearly Breakdown of Lyme Cases in Whatcom County

Confirmed cases reported to the CDC each year.
View as a table
Confirmed Lyme disease cases in Whatcom County by year
Year Confirmed cases
2000 0
2001 0
2002 0
2003 0
2004 0
2005 1
2006 1
2007 1
2008 5
2009 0
2010 0
2011 2
2012 1
2013 0
2014 2
2015 1
2016 1
2017 2
2018 3
2019 2
2020 0
2000–2020
Confirmed cases
    Whatcom County

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    Lyme Stats for Other Washington Counties

    Confirmed Lyme disease cases by county in Washington, 2000 to 2020
    County Confirmed cases Share of state
    King County 132 29.8%
    Pierce County 39 8.8%
    Kitsap County 23 5.2%
    Thurston County 22 5.0%
    Whatcom County 22 5.0%
    Clark County 20 4.5%
    Spokane County 20 4.5%
    Snohomish County 18 4.1%
    Island County 10 2.3%
    Skagit County 10 2.3%
    Jefferson County 9 2.0%
    Yakima County 7 1.6%
    Cowlitz County 5 1.1%
    Grays Harbor County 5 1.1%
    Klickitat County 5 1.1%
    San Juan County 5 1.1%
    Benton County 4 0.9%
    Clallam County 4 0.9%
    Mason County 3 0.7%
    Whitman County 3 0.7%
    Kittitas County 2 0.5%
    Lewis County 2 0.5%
    Pacific County 2 0.5%
    Stevens County 2 0.5%
    Adams County 1 0.2%
    Chelan County 1 0.2%
    Ferry County 1 0.2%
    Franklin County 1 0.2%
    Okanogan County 1 0.2%
    Skamania County 1 0.2%
    Asotin County 0 0.0%
    Columbia County 0 0.0%
    Douglas County 0 0.0%
    Garfield County 0 0.0%
    Grant County 0 0.0%
    Lincoln County 0 0.0%
    Pend Oreille County 0 0.0%
    Wahkiakum County 0 0.0%
    Walla Walla County 0 0.0%
    Unknown County 63 14.2%

    "Unknown County" counts cases the CDC confirmed in Washington without a county of residence. They are included in the state total but not on the map.

    Data Sources

    All Lyme disease prevalence data sourced from the Centers for Disease Control and Prevention's surveillance data. Cases are counted by the patient's county of residence, which may not be where the tick bite occurred.

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