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Reports of Lyme Disease in Union County, New Jersey

1,303

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

Ranked #18 of 21 counties in New Jersey. That's 1.6% of New Jersey's 79,049 confirmed cases.

Yearly Breakdown of Lyme Cases in Union County

Confirmed cases reported to the CDC each year.
View as a table
Confirmed Lyme disease cases in Union County by year
Year Confirmed cases
2000 19
2001 16
2002 33
2003 39
2004 61
2005 24
2006 25
2007 55
2008 67
2009 88
2010 67
2011 89
2012 76
2013 78
2014 59
2015 107
2016 95
2017 110
2018 92
2019 62
2020 41
2000–2020
Confirmed cases
    Union County

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    Lyme Stats for Other New Jersey Counties

    Confirmed Lyme disease cases by county in New Jersey, 2000 to 2020
    County Confirmed cases Share of state
    Morris County 9,524 12.0%
    Hunterdon County 7,171 9.1%
    Monmouth County 7,046 8.9%
    Sussex County 6,086 7.7%
    Warren County 4,635 5.9%
    Ocean County 4,163 5.3%
    Burlington County 3,884 4.9%
    Somerset County 3,859 4.9%
    Bergen County 3,850 4.9%
    Mercer County 3,459 4.4%
    Middlesex County 3,170 4.0%
    Passaic County 2,717 3.4%
    Essex County 2,511 3.2%
    Gloucester County 2,275 2.9%
    Atlantic County 2,183 2.8%
    Cumberland County 1,696 2.1%
    Camden County 1,310 1.7%
    Union County 1,303 1.6%
    Salem County 800 1.0%
    Cape May County 591 0.7%
    Hudson County 583 0.7%
    Unknown County 6,233 7.9%

    "Unknown County" counts cases the CDC confirmed in New Jersey 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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