Ticks in Kentucky

Ticks are active in Kentucky whenever the ground is not frozen, led by the Lyme-carrying deer tick. TickZone scores all 446 Kentucky 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 Kentucky

Tick season in Kentucky runs whenever the ground is not frozen, roughly March through November, with two peaks. Nymph deer ticks, the poppy-seed-sized stage that causes most Lyme cases, peak from late May through July. Adult deer ticks make a second push in October and November, and on any winter day above about 40 F they can quest again. American dog ticks are busiest from April through July.

Generalized for the Northeast and Upper Midwest Lyme belt.
Life stageJFMAMJJASOND
Deer tick nymphs
Deer tick adults
American dog tick
Lone star tick
Peak Active
Generalized for the Northeast and Upper Midwest Lyme belt. Activity windows by life stage from TickEncounter (Univ. of Rhode Island) and the Northeast Regional Center for Excellence in Vector-Borne Diseases. Any warm spell can wake ticks earlier than the calendar suggests.

Those are averages, and any single week can run hotter or colder than the calendar suggests. The daily score on every town page folds the season, the weather, and local habitat into one number each morning, so it is the safer way to time yard work, hikes, and pet prevention.

Highest-risk towns in Kentucky (2026)

Kentucky's highest structural tick risk concentrates in Jefferson County, which holds 10 of the state's top 10 towns (1 CDC-reported Lyme cases per 100k). The top 10 towns run 86 to 94 percent forest, ranked at peak season so the list stays stable.

  1. 1Maryhill Estates Jefferson CountyHigh at peak
  2. 2Thornhill Jefferson CountyHigh at peak
  3. 3Bellewood Jefferson CountyHigh at peak
  4. 4Bancroft Jefferson CountyHigh at peak
  5. 5Audubon Park Jefferson CountyHigh at peak
  6. 6Rolling Fields Jefferson CountyHigh at peak
  7. 7Hills and Dales Jefferson CountyHigh at peak
  8. 8Brownsboro Village Jefferson CountyHigh at peak
  9. 9Riverwood Jefferson CountyHigh at peak
  10. 10Mockingbird Valley Jefferson CountyHigh at peak

See the riskiest towns in every state →

All Kentucky towns, by county

Adair County · 1 towns

Allen County · 1 towns

Anderson County · 1 towns

Ballard County · 5 towns

Barren County · 3 towns

Bath County · 3 towns

Bell County · 2 towns

Boone County · 8 towns · 4/100k Lyme

Bourbon County · 3 towns

Boyd County · 3 towns

Boyle County · 3 towns

Bracken County · 3 towns

Breathitt County · 1 towns

Breckinridge County · 3 towns

Bullitt County · 9 towns

Butler County · 3 towns

Caldwell County · 2 towns

Calloway County · 2 towns

Campbell County · 16 towns

Carlisle County · 2 towns

Carroll County · 5 towns

Carter County · 2 towns

Casey County · 1 towns

Christian County · 6 towns

Clark County · 1 towns

Clay County · 1 towns

Clinton County · 1 towns

Crittenden County · 1 towns

Cumberland County · 1 towns

Daviess County · 5 towns

Edmonson County · 1 towns

Elliott County · 1 towns

Estill County · 2 towns

Fayette County · 1 towns

Fleming County · 2 towns

Floyd County · 5 towns

Franklin County · 1 towns

Fulton County · 2 towns

Gallatin County · 3 towns

Garrard County · 1 towns

Grant County · 4 towns

Graves County · 2 towns

Grayson County · 3 towns

Green County · 1 towns

Greenup County · 8 towns

Hancock County · 2 towns

Hardin County · 8 towns

Harlan County · 6 towns

Harrison County · 2 towns

Hart County · 3 towns

Henderson County · 3 towns

Henry County · 5 towns

Hickman County · 2 towns

Hopkins County · 9 towns

Jackson County · 2 towns

Jefferson County · 84 towns · 1/100k Lyme

Jessamine County · 3 towns

Johnson County · 1 towns

Kenton County · 18 towns

Knott County · 2 towns

Knox County · 1 towns

Larue County · 1 towns

Laurel County · 2 towns · 8/100k Lyme

Lawrence County · 2 towns

Lee County · 1 towns

Leslie County · 1 towns

Letcher County · 3 towns

Lewis County · 2 towns

Lincoln County · 3 towns

Livingston County · 5 towns

Logan County · 4 towns

Lyon County · 2 towns

Madison County · 2 towns

Magoffin County · 1 towns

Marion County · 5 towns

Marshall County · 3 towns

Martin County · 2 towns

Mason County · 3 towns

McCracken County · 5 towns

McCreary County · 2 towns

McLean County · 4 towns

Meade County · 4 towns

Menifee County · 1 towns

Mercer County · 2 towns

Metcalfe County · 1 towns

Monroe County · 3 towns

Montgomery County · 3 towns

Morgan County · 1 towns

Muhlenberg County · 6 towns

Nelson County · 4 towns

Nicholas County · 1 towns

Ohio County · 6 towns

Oldham County · 7 towns

Owen County · 3 towns

Owsley County · 1 towns

Pendleton County · 2 towns

Perry County · 3 towns

Pike County · 3 towns

Powell County · 2 towns

Pulaski County · 5 towns

Robertson County · 1 towns

Rockcastle County · 3 towns

Rowan County · 2 towns

Russell County · 2 towns

Scott County · 3 towns

Shelby County · 2 towns

Simpson County · 1 towns

Spencer County · 2 towns

Taylor County · 1 towns

Todd County · 3 towns

Trigg County · 1 towns

Trimble County · 2 towns

Union County · 5 towns

Warren County · 6 towns

Washington County · 3 towns

Wayne County · 1 towns

Webster County · 6 towns

Whitley County · 2 towns

Wolfe County · 1 towns

Woodford County · 2 towns

Kentucky tick questions

Are there ticks in Kentucky?
Yes. Kentucky has ticks in every county, led by the deer tick (blacklegged tick) that spreads Lyme disease, along with the American dog tick and the lone star tick. They are active whenever the ground is not frozen, and today 207 of the state's 446 towns are at moderate or high tick risk on TickZone's daily score.
What types of ticks live in Kentucky?
Kentucky has the deer tick (blacklegged tick), which carries Lyme disease; the American dog tick; and the lone star tick, which is established in the state and causes alpha-gal syndrome. See the Kentucky tick identification chart for photos and how to tell them apart.
When does tick season start and end in Kentucky?
In Kentucky, ticks are active whenever the ground is not frozen, roughly March through November. Nymph deer ticks peak in June and July and cause most Lyme cases, and adult ticks have a second peak in the fall. On any winter day above freezing, adult ticks can still bite.
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 Kentucky, 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 Kentucky?
The deer tick, also called the blacklegged tick, is the tick that spreads Lyme disease in Kentucky. The American dog tick and lone star tick do not carry Lyme.