- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Reports of Lyme Disease in the U.S.
662,862
Total cases of Lyme disease confirmed nationwide (2000 to 2020).
Note:
Due to the fact that the CDC's data only represents confirmed cases, the actual quantity of Lyme disease cases may be far greater. We estimate a total of 6,628,620 true cases of lyme of disease in U.S. since the year 2000.
Most Infected Counties
| County | Total Cases |
|---|---|
| Dutchess County, New York | 12,783 |
| Chester County, Pennsylvania | 12,697 |
| Pennsylvania (Unknown County) | 12,392 |
| Connecticut (Unknown County) | 10,923 |
| Fairfield County, Connecticut | 10,404 |
| Bucks County, Pennsylvania | 9,805 |
| Morris County, New Jersey | 9,524 |
| Montgomery County, Pennsylvania | 9,372 |
| Middlesex County, Massachusetts | 8,465 |
| Columbia County, New York | 7,681 |
| New London County, Connecticut | 7,223 |
| Hunterdon County, New Jersey | 7,171 |
| Monmouth County, New Jersey | 7,046 |
| Orange County, New York | 6,935 |
| New Haven County, Connecticut | 6,576 |
| New York (Unknown County) | 6,483 |
| New Castle County, Delaware | 6,456 |
| York County, Pennsylvania | 6,454 |
| Suffolk County, New York | 6,427 |
| New Jersey (Unknown County) | 6,233 |
Connect with TickCheck on Facebook & Instagram for the latest tick news and tips!
Data Sources
All Lyme disease prevalence data sourced from the Centers for Disease Control and Prevention's surveillance data.