Ticks in Tennessee
Ticks are active in Tennessee nearly year-round, led by the lone star tick. TickZone scores all 404 Tennessee towns every morning, so risk stays local: pick your town for today's number, a 7-day outlook, and what's driving it.
Tick season in Tennessee
Tick season in Tennessee effectively runs year-round: winters rarely stay cold long enough to fully shut ticks down. Lone star ticks ramp up first in early spring, peak from April through July, and their larval "seed tick" swarms hit hardest in late summer. American dog ticks are busiest from spring through midsummer, and adult ticks of every species can still quest on mild winter days.
| Life stage | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lone star tick | ||||||||||||
| Seed ticks (lone star larvae) | ||||||||||||
| American dog tick | ||||||||||||
| Gulf Coast tick |
That means prevention never fully comes off in Tennessee: the safer way to time it is by the day, not the month. The daily score on every town page folds the season, the weather, and local habitat into one number each morning.
Highest-risk towns in Tennessee (2026)
Tennessee's highest-risk towns are spread across several counties, led by Hamilton County. The top 10 towns run 53 to 89 percent forest, ranked at peak season so the list stays stable.
- 1Belle Meade Davidson CountyModerate at peak
- 2Ridgeside Hamilton CountyModerate at peak
- 3Green Hill Wilson CountyModerate at peak
- 4Germantown Shelby CountyModerate at peak
- 5Big Sandy Benton CountyModerate at peak
- 6Lookout Mountain Hamilton CountyModerate at peak
- 7East Ridge Hamilton CountyModerate at peak
- 8Stanton Haywood CountyModerate at peak
- 9Trezevant Carroll CountyModerate at peak
- 10Hickory Valley Hardeman CountyModerate at peak
All Tennessee towns, by county
Anderson County · 5 towns
Bedford County · 5 towns
Benton County · 2 towns
Bledsoe County · 1 towns
Blount County · 8 towns
Bradley County · 6 towns
Campbell County · 5 towns
Cannon County · 2 towns
Carroll County · 8 towns
Carter County · 9 towns
Cheatham County · 4 towns
Chester County · 2 towns
Claiborne County · 4 towns
Clay County · 1 towns
Cocke County · 2 towns
Coffee County · 4 towns
Crockett County · 5 towns
Cumberland County · 5 towns
Davidson County · 6 towns
Decatur County · 2 towns
DeKalb County · 4 towns
Dickson County · 6 towns
Dyer County · 3 towns
Fayette County · 9 towns
Fentress County · 3 towns
Franklin County · 6 towns
Gibson County · 10 towns
Giles County · 5 towns
Grainger County · 3 towns
Greene County · 4 towns
Grundy County · 7 towns
Hamblen County · 1 towns
Hamilton County · 17 towns
Hancock County · 1 towns
Hardeman County · 9 towns
Hardin County · 4 towns
Hawkins County · 5 towns
Haywood County · 2 towns
Henderson County · 4 towns
Henry County · 4 towns
Hickman County · 2 towns
Houston County · 2 towns
Humphreys County · 3 towns
Jackson County · 2 towns
Jefferson County · 6 towns
Johnson County · 1 towns
Knox County · 7 towns · 1/100k Lyme
Lake County · 2 towns
Lauderdale County · 4 towns
Lawrence County · 4 towns
Lewis County · 1 towns
Lincoln County · 3 towns
Loudon County · 5 towns
Macon County · 2 towns
Madison County · 3 towns
Marion County · 7 towns
Marshall County · 3 towns
Maury County · 2 towns
McMinn County · 5 towns
McNairy County · 10 towns
Meigs County · 1 towns
Monroe County · 4 towns
Montgomery County · 1 towns
Moore County · 1 towns
Morgan County · 4 towns
Obion County · 8 towns
Overton County · 1 towns
Perry County · 2 towns
Pickett County · 1 towns
Polk County · 3 towns
Putnam County · 4 towns
Rhea County · 3 towns
Roane County · 4 towns
Robertson County · 8 towns
Rutherford County · 6 towns
Scott County · 3 towns
Sequatchie County · 2 towns
Sevier County · 5 towns
Shelby County · 7 towns
Smith County · 3 towns
Stewart County · 2 towns
Sullivan County · 9 towns
Sumner County · 8 towns
Tipton County · 8 towns
Trousdale County · 1 towns
Unicoi County · 3 towns
Union County · 3 towns
Van Buren County · 1 towns
Warren County · 4 towns
Washington County · 5 towns · 4/100k Lyme
Wayne County · 3 towns
Weakley County · 5 towns
White County · 2 towns
Williamson County · 6 towns
Wilson County · 6 towns
Tennessee tick questions
- Are there ticks in Tennessee?
- Yes. Tennessee has ticks in every county, led by the lone star tick, with the American dog tick, Gulf Coast tick, brown dog tick, and deer tick also present. Ticks here stay active nearly year-round, and today 1 of the state's 404 towns are at moderate or high tick risk on TickZone's daily score.
- What types of ticks live in Tennessee?
- Tennessee has five human-biting ticks: the lone star tick (established statewide, the state's most common human-biting tick and the main cause of alpha-gal syndrome), the Gulf Coast tick (not established), the American dog tick, the brown dog tick, and the deer tick (blacklegged tick), which carries Lyme disease but bites people far less often this far south. See the Tennessee tick identification chart for photos and how to tell them apart.
- When does tick season start and end in Tennessee?
- In Tennessee, ticks are active nearly year-round: the region rarely gets a hard freeze long enough to fully shut them down. The lone star tick ramps up earliest in spring, peaks in midsummer, and its larval "seed tick" swarms hit hardest in late summer. Adult ticks can still quest on mild winter days.
- When is flea and tick season?
- Flea and tick season generally runs from early spring through late fall, peaking in the warm summer months. In Tennessee, start prevention for pets and people in March and keep it up through November, since ticks can bite on any mild day.
- Which tick carries Lyme disease in Tennessee?
- The deer tick, also called the blacklegged tick, is the tick that spreads Lyme disease, but it is a minor factor in Tennessee. The lone star tick does not carry Lyme, but its bite causes alpha-gal syndrome, and it bites people far more often here than the deer tick does.
- Does Tennessee have lone star ticks that cause alpha-gal syndrome?
- Yes. The lone star tick is established across Tennessee and is the tick most responsible for human bites in the state. Its bite can trigger alpha-gal syndrome, a delayed allergy to red meat and other mammal products, along with ehrlichiosis and STARI.