Georgia is home to three tick species that regularly bite humans, plus a newer invasive species that’s gaining ground in the northern part of the state. Ticks are active during warm months primarily, but tick-borne illnesses have been reported year-round in Georgia. Knowing which ticks live here, what diseases they carry, and how to protect yourself makes a real difference if you spend any time outdoors.
The Three Most Common Species
The Lone Star tick, American dog tick, and black-legged tick are the species most commonly associated with human bites in Georgia, according to the University of Georgia’s Cooperative Extension. Each looks distinct enough to identify if you know what to look for.
The Lone Star tick has unusually long mouthparts. Females are easy to spot thanks to a single white dot in the center of their backs. Males have more diffuse, scattered white markings. This is the most aggressive biter of the three and the one Georgians encounter most often in wooded and grassy areas.
The American dog tick has shorter mouthparts than the Lone Star. Both males and females display diffuse white markings on their backs. These ticks tend to favor areas with little tree cover, like trails, paths, and the edges of fields.
The black-legged tick (sometimes called the deer tick) is noticeably smaller than the other two, roughly 1/16 of an inch. It has no white markings on its back, making it harder to spot on skin or clothing. Its tiny size is part of what makes it dangerous: people often don’t notice the bite.
The Asian Longhorned Tick: A Newer Arrival
The Asian longhorned tick, native to eastern Asia, was first confirmed in the United States in 2017. Georgia’s Department of Agriculture has since confirmed its presence in Habersham, Hall, Pickens, and White counties in the northern part of the state. This tick feeds on many different hosts, including humans, spending part of its life cycle on an animal and part in the surrounding environment.
What makes this species unusual is its ability to reproduce without mating. A single female can lay eggs and produce offspring on her own, which means populations can explode quickly once established in an area. Researchers are still tracking how far and how fast this tick is spreading across the southeastern United States.
Diseases Georgia Ticks Carry
Each of the major tick species in Georgia transmits different illnesses, so identifying the tick that bit you can help narrow down the risk.
The black-legged tick is the primary carrier of Lyme disease in the eastern United States. Georgia sits at the southern edge of the Lyme disease range, so case numbers are lower here than in the Northeast, but transmission does occur. The same tick can also transmit anaplasmosis and babesiosis. Because the black-legged tick is so small, bites often go unnoticed, and infected ticks generally need to be attached for 36 to 48 hours before the bacteria that cause Lyme disease transfer to the host.
The American dog tick is the main vector for Rocky Mountain spotted fever in the Southeast. Despite the name, most cases in the U.S. actually occur in the southeastern and south-central states. Early symptoms include fever, headache, and a characteristic rash that often starts on the wrists and ankles. This illness can become serious quickly without treatment.
The Lone Star tick transmits ehrlichiosis and Southern tick-associated rash illness (STARI), which produces a circular rash that can look very similar to the Lyme disease rash. But the Lone Star tick is also linked to something unexpected: a red meat allergy.
Alpha-Gal Syndrome and the Lone Star Tick
Alpha-gal syndrome is a food allergy triggered by tick bites, and the Lone Star tick is the primary species linked to it in the United States. When a Lone Star tick bites, its saliva introduces a sugar molecule called alpha-gal into your bloodstream. Your immune system can then produce antibodies against that sugar. The problem is that alpha-gal is also found in beef, pork, lamb, and other mammalian meat.
Once sensitized, eating red meat can trigger allergic reactions ranging from hives and stomach cramps to severe anaphylaxis. The reaction is often delayed, appearing three to six hours after eating, which makes it tricky to connect to food. Researchers confirmed a direct link between Lone Star tick bites and the development of these antibodies in 2011, and cases have risen sharply since then, particularly across the Southeast where the Lone Star tick is abundant. For some people, the allergy fades over time if they avoid additional tick bites. For others, it persists.
When Ticks Are Most Active
Tick-borne illnesses in Georgia are most commonly transmitted between early spring and late fall. Georgia’s warm, humid climate gives ticks a long season compared to northern states. Peak activity for adult Lone Star and American dog ticks runs from April through August, while black-legged tick adults are most active in the cooler months of fall and early spring. Nymphs (the immature stage responsible for many disease transmissions, especially for Lyme) are most active from May through July.
Georgia’s mild winters mean ticks don’t fully disappear in the colder months. The state’s Department of Public Health notes that tick-borne diseases have been reported in every season, so year-round awareness is worth maintaining even if the highest risk falls in the warmer half of the year.
How to Protect Yourself
Prevention comes down to two strategies: repelling ticks from your skin and killing them on your clothing.
For skin, DEET and picaridin are the most effective options. Concentrations of 20% to 35% DEET work well for most outdoor activities. Products with 20% picaridin can protect against tick bites for eight to 14 hours depending on the formulation. Both are EPA-registered and work by making it harder for ticks to sense you, not by killing them. Natural alternatives like oil of lemon eucalyptus are also EPA-registered and contain a naturally occurring tick repellent, though they generally don’t last as long.
For clothing and gear, permethrin is the gold standard. It kills ticks on contact and can be applied to shoes, pants, socks, hats, backpacks, and even lawn chairs. You can buy 0.5% permethrin spray at most pharmacies or outdoor retailers and treat your own clothes. Spray each item for 30 to 45 seconds on both sides, let it dry completely outdoors, and don’t bring it inside until dry. A single application lasts about six weeks or six washes. You can also send clothing to commercial services for longer-lasting treatment. Never apply permethrin directly to skin.
Combining a skin repellent with permethrin-treated clothing gives you the strongest protection available, which matters in Georgia where you may encounter all three major species in a single hike.
What to Do After a Tick Bite
If you find a tick attached to your skin, remove it with fine-tipped tweezers. Grasp the tick as close to the skin surface as possible and pull upward with steady, even pressure. Don’t twist, jerk, or squeeze the body, as this can cause the mouthparts to break off in the skin or push infected fluids into the bite. After removal, clean the bite area with rubbing alcohol or soap and water.
Save the tick if you can, either in a sealed bag or a small container. Identifying the species helps determine your disease risk. A black-legged tick raises different concerns than a Lone Star tick. Note how long the tick was likely attached, since transmission times vary by disease. If you develop a fever, rash, joint pain, or flu-like symptoms in the days or weeks following a bite, that timeline and the tick species will be useful information for your healthcare provider.
Pay particular attention to a circular or expanding rash around the bite site. With Lyme disease, this rash typically appears three to 30 days after the bite and expands outward. STARI from Lone Star ticks can produce a nearly identical rash. Either way, a spreading rash after a tick bite warrants prompt attention.