Animal Population
Tick Population by State 2026
Lyme Disease Cases
5,000
10,000
15,000
20,000
State | Lyme Disease Cases 2023↓ | Lyme Disease Cases Reported 2000-2020 | |
|---|---|---|---|
 | New York | 22,122 | 101,300 |
 | Pennsylvania | 16,671 | 134,624 |
 | Massachusetts | 9,682 | 50,332 |
 | New Jersey | 7,106 | 79,049 |
 | Wisconsin | 6,079 | 42,002 |
 | West Virginia | 3,233 | 6,644 |
 | Connecticut | 3,230 | 55,382 |
 | Maine | 2,942 | 21,963 |
 | Minnesota | 2,938 | 29,385 |
 | Rhode Island | 2,852 | 13,846 |
 | Maryland | 2,404 | 31,487 |
 | Virginia | 1,585 | 19,294 |
 | New Hampshire | 1,564 | 20,388 |
 | Vermont | 1,445 | 9,675 |
 | Ohio | 1,307 | 3,545 |
 | Michigan | 1,152 | 3,744 |
 | Illinois | 372 | 4,456 |
 | Delaware | 325 | 11,734 |
 | Florida | 271 | 2,511 |
 | North Carolina | 228 | 3,626 |
 | Iowa | 212 | 3,744 |
 | Indiana | 167 | 2,013 |
 | California | 109 | 2,219 |
 | District of Columbia | 108 | 1,130 |
 | Kentucky | 103 | 391 |
 | Oregon | 61 | 826 |
 | South Carolina | 55 | 766 |
 | Tennessee | 50 | 611 |
 | Alabama | 36 | 519 |
 | Colorado | 32 | 31 |
 | Texas | 27 | 1,795 |
 | Washington | 25 | 443 |
 | Georgia | 18 | 348 |
 | Arizona | 16 | 230 |
 | Missouri | 16 | 372 |
 | Utah | 16 | 223 |
 | Louisiana | 15 | 91 |
 | North Dakota | 15 | 470 |
 | Nevada | 14 | 193 |
 | Kansas | 12 | 410 |
 | Montana | 11 | 120 |
 | New Mexico | 11 | 66 |
 | Idaho | 7 | 202 |
 | South Dakota | 7 | 97 |
 | Arkansas | 5 | 87 |
 | Nebraska | 5 | 191 |
 | Mississippi | 4 | 77 |
 | Oklahoma | 3 | 19 |
 | Alaska | 2 | 144 |
 | Wyoming | 2 | 47 |
 | Hawaii | 0 | |
 | United States | 88,672 | 662,862 |
- Actual tick populations are not tracked but may be inferred by measuring cases of Lyme disease, which is caused exclusively by tick bites
- 2020 data for a handful of states may be slightly incomplete due to complications related to the 2020 COVID-19 pandemic
- Rates in Hawaii are non-reportable by law
- Lyme Disease Estimate: Due to the fact that the CDC’s data only represents confirmed cases, the actual quantity of Lyme disease cases may be notably higher
