Skip to content
TickCheck tick testing

Reports of Lyme Disease in Penobscot County, Maine

737

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

Ranked #10 of 16 counties in Maine. That's 3.4% of Maine's 21,963 confirmed cases.

Yearly Breakdown of Lyme Cases in Penobscot County

Confirmed cases reported to the CDC each year.
View as a table
Confirmed Lyme disease cases in Penobscot County by year
Year Confirmed cases
2000 2
2001 6
2002 10
2003 3
2004 3
2005 6
2006 5
2007 7
2008 13
2009 8
2010 11
2011 11
2012 21
2013 39
2014 50
2015 51
2016 90
2017 128
2018 77
2019 111
2020 85
2000–2020
Confirmed cases
    Penobscot County

    Loading the map…

    Lyme Stats for Other Maine Counties

    Confirmed Lyme disease cases by county in Maine, 2000 to 2020
    County Confirmed cases Share of state
    Cumberland County 4,107 18.7%
    York County 3,669 16.7%
    Kennebec County 2,188 10.0%
    Knox County 1,530 7.0%
    Hancock County 1,402 6.4%
    Lincoln County 989 4.5%
    Androscoggin County 920 4.2%
    Waldo County 895 4.1%
    Sagadahoc County 787 3.6%
    Penobscot County 737 3.4%
    Oxford County 526 2.4%
    Somerset County 397 1.8%
    Washington County 218 1.0%
    Franklin County 190 0.9%
    Aroostook County 60 0.3%
    Piscataquis County 39 0.2%
    Unknown County 3,309 15.1%

    "Unknown County" counts cases the CDC confirmed in Maine 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.

    TickCheck

    Connect with TickCheck on Facebook and Instagram for the latest tick news and tips.

    Did you just find a tick on yourself or a loved one? TickCheck can test your tick and determine whether it carries the bacteria that transmit Lyme disease and other tick-borne infections.

    Test My Tick Now