Today’s Tick Risk in New Jersey – Real-Time Forecast & Activity Map
Check your ZIP code for local tick activity, real-time risk levels, and prevention insights.
Built from CDC and NOAA data
Surveillance Insights
- Annual Lyme Cases
- ~3,000-4,000 confirmed cases annually
- Based on CDC surveillance data
- Long-Term Trend
- Rising cases of spotted fever rickettsiosis (Lone Star tick)
- Based on CDC surveillance data
- High Risk Zones
- Hunterdon, Morris, Sussex, Monmouth, Ocean, Somerset, Delaware Water Gap National Recreation Area
Current Situation in New Jersey
New Jersey is a "hyper-endemic" state for tick-borne diseases, meaning the risk is high, sustained, and widespread. The state's unique geography—squeezed between the Atlantic Ocean and the Delaware River, with dense suburbanization intersecting with preserved open spaces—creates an ideal breeding ground for ticks. The tick forecast for New Jersey is consistently severe. Lyme disease is the most common vector-borne illness, but the state is also a hotspot for coinfections like Babesiosis and Anaplasmosis. Furthermore, New Jersey has seen a rapid expansion of the Lone Star tick from the south and is the epicenter for the invasive Asian Longhorned Tick, which poses a new threat to livestock and pets. The risk is not confined to the "countryside"; suburban backyards in counties like Morris, Hunterdon, and Monmouth are primary transmission sites.
Snapshot of the current tick situation in New Jersey, based on regional surveillance data and seasonal activity patterns.
- Risk Level
- Very High
- Peak Activity
- May - July
- Dominant Vector
- Deer Tick (Ixodes scapularis)
Where Ticks Hide in New Jersey
New Jersey's diverse ecology supports a high density of vectors. The Pine Barrens in the south offer a vast, sandy, acidic environment dominated by pitch pines and scrub oaks—terrain that the Lone Star tick finds particularly hospitable. In northern and central New Jersey, the landscape is defined by deciduous hardwood forests broken up by suburban development. This fragmentation creates thousands of miles of "edge habitat," maximizing the population of white-tailed deer, which are the primary reproductive host for adult deer ticks. The state's high humidity, driven by its coastal location, ensures that tick populations survive and thrive even during drier summer spells. Parks, hiking trails, and even well-manicured lawns in older suburbs are significant risk areas.
Seasonal Activity Pattern
Tick activity in New Jersey is effectively a year-round concern. The nymphal deer tick peak occurs from May through July, coinciding with the highest human outdoor activity. However, the state's increasingly mild winters, particularly in the coastal and southern counties, allow adult deer ticks to remain active throughout much of the winter. It is not uncommon to encounter ticks in January or February during a thaw. The Lone Star tick is most active from April through late August and is known for its aggressive biting behavior. The Asian Longhorned Tick, while less interested in humans, can swarm livestock and pets in massive numbers during the late summer.
Check Your Local Tick Risk
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Local Vector Analysis
Understanding which ticks are active in New Jersey helps you identify threats and take appropriate precautions.
Deer Tick / Blacklegged Tick
Ixodes scapularis
Appearance: Dark reddish-brown body with black shield on back. Adults are 3-5mm.
Peak Season: Adults: Oct-May | Nymphs: May-Aug
Habitat: Deciduous forests, shady moist areas, and leaf litter. Loves the boundary between lawns and woods.
Diseases: Lyme Disease, Anaplasmosis, Babesiosis, Powassan Virus, B. miyamotoi
Lone Star Tick
Amblyomma americanum
Appearance: Distinct white dot or "lone star" on female's back. Reddish-brown body.
Peak Season: Active from early Spring through late Fall
Habitat: Woodlands with dense undergrowth and around animal resting areas.
Diseases: Ehrlichiosis, Alpha-gal Syndrome, STARI, Heartland Virus, Bourbon Virus
Note: Aggressive hunter. Actively pursues hosts.
American Dog Tick
Dermacentor variabilis
Appearance: Brown with white/grey mottling. Ornate white patterns on shield.
Peak Season: Spring and Summer
Habitat: Grassy fields, walkways, and trails. More tolerant of dry conditions than Deer Ticks.
Diseases: Rocky Mountain Spotted Fever, Tularemia
Lyme Disease
Vector: Deer tick (Ixodes scapularis)
Lyme Disease
Lyme disease is a bacterial infection transmitted by deer ticks. If caught early, it's highly treatable with antibiotics. Left untreated, it can cause serious complications affecting joints, heart, and nervous system.
Early Warning Signs
- Erythema migrans (EM) rash - appears in 70-80% of cases
- Bullseye rash (circular red rash with clear center)
- Rash appears 3-30 days after bite
- Fever and chills
Progression & Symptoms
- Severe headaches and neck stiffness
- Facial palsy (loss of muscle tone on one or both sides of face)
- Arthritis with severe joint pain, especially knees
Prevention Strategies
The best way to avoid tick-borne diseases is to prevent tick bites in the first place. These strategies work together to create multiple layers of protection.
Permethrin-Treated Clothing
Permethrin is an insecticide that kills ticks on contact. When applied to clothing, it remains effective through multiple washes.
Daily Tick Checks
Since disease transmission typically requires 24-48 hours of attachment, finding and removing ticks quickly dramatically reduces infection risk.
Landscaping Defense
Creating a tick-hostile environment in your yard reduces the chance ticks will be waiting when you step outside.
Shower Within 2 Hours
Showering after outdoor activity gives you a chance to wash off ticks before they bite.
Tick Bite Protocol
Acting quickly and correctly is your best defense against infection.Follow these 6 critical steps.
Don't Panic
Most tick bites do not transmit disease, especially if removed quickly.
- Infection rates vary by region (20-50%)
- Transmission usually takes 24-48 hours
- Stay calm and use proper technique
Gather Tools
Use fine-tipped tweezers. Avoid fingers or chemicals.
- Fine-tipped tweezers are best
- Rubbing alcohol for cleaning
- Small container to save the tick
Grasp & Pull
Grasp close to skin and pull upward with steady pressure.
- Grab mouthparts near skin (not body)
- Pull straight up—don't twist
- Maintain steady, even pressure
Clean Area
Disinfect the bite site and your hands thoroughly.
- Wash with soap and water
- Apply rubbing alcohol
- Wash hands well
Save Tick
Keep the tick in a sealed container for potential testing.
- Seal in bag or container
- Label with date and location
- Bring to doctor if symptoms appear
Monitor (30 Days)
Watch for rash or flu-like symptoms for a month.
- Check for expanding rash daily
- Watch for fever or fatigue
- Seek care if you feel unwell
When does tick season end in New Jersey?
Tick activity winds down after the first hard freeze, which in New Jersey typically arrives around Oct 20. See the local first-frost window and city-by-city freeze dates.
New Jersey first frost datesAlso worried about mosquitoes in New Jersey?
West Nile virus, EEE, and the local mosquito season vary by state. Check your New Jersey mosquito risk profile.
View New Jersey mosquito forecastStay Safe in New Jersey
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