Tick and Lyme Disease Risk at Pelham Bay Park and Van Cortlandt Park: What Bronx Hikers and Dog Walkers Need to Know

Tick Risk in the Bronx: Pelham Bay Park and Van Cortlandt Park

Most people think of the Bronx as an urban environment where tick-borne illness is someone else's concern. That assumption is wrong, and it is putting Bronx residents at risk every spring, summer, and fall.

Pelham Bay Park — at 2,772 acres, the largest park in New York City — and Van Cortlandt Park, the fourth largest at 1,146 acres, are both documented habitat for Ixodes scapularis, the black-legged deer tick that transmits Lyme disease. These parks draw millions of visitors annually for hiking, trail running, birding, picnicking, and dog walking. Many of those visitors return home with ticks they never noticed — and some develop Lyme disease weeks later without connecting their illness to a Bronx park visit.

At Bronx County Pest Control, we treat residential yards adjacent to both parks, and we want Bronx residents to understand the actual risk and how to reduce it.

The Deer Tick in the Bronx: Established, Not Rare

Ixodes scapularis has been documented in Bronx parks since at least the 1990s, and its range within the borough has expanded over the past two decades as deer populations have grown in Pelham Bay Park and Van Cortlandt Park. Deer are the primary reproductive host for adult deer ticks — as deer populations increase, so does the tick population.

The CDC's national tick surveillance data and New York State DOH county-level Lyme disease reporting consistently show Bronx County Lyme disease cases every year. The numbers are lower than Westchester, Rockland, and Suffolk counties — but they are real, and they are concentrated among residents who frequent Bronx parks.

High-Risk Areas in Pelham Bay Park

Pelham Bay Park's 2,772 acres include a mix of woodland, meadow, and shoreline habitat that is ideal for tick activity. The highest-risk areas are:

Hunter Island

Hunter Island, connected to the mainland by a narrow causeway near Orchard Beach, contains mature woodland with dense undergrowth and a well-established deer population. The combination of deer, white-footed mice (the primary reservoir host for Lyme bacteria), and dense vegetation makes it one of the highest-risk tick areas in New York City.

Kazimiroff Nature Trail and Twin Island

The Kazimiroff Nature Trail — a 1.5-mile loop through the heart of Pelham Bay Park's woodland — passes through prime deer tick habitat. Trail edges where mowed areas meet woodland undergrowth are the zones of highest tick concentration. Twin Island, accessible via the trail system near Orchard Beach, carries similar risk.

Pelham Bay Park Meadow Areas

Meadow areas within the park where tall grasses are present — particularly near the park's eastern sections bordering the Bronx River Parkway — are significant nymph-stage tick habitat during late spring and early summer.

High-Risk Areas in Van Cortlandt Park

Van Cortlandt Park's woodland areas in the park's interior — particularly around Van Cortlandt Lake, the old Putnam Rail Trail, and the Cass Gallagher Nature Trail — present meaningful deer tick risk. The park's northern sections near the Yonkers border include dense secondary woodland where deer movement is regular.

Cross-country runners using the Van Cortlandt Park trail system should be aware that trail-edge vegetation — not the open grass fields — is where tick exposure occurs.

Lyme Disease: What Bronx Residents Need to Know

Lyme disease is caused by Borrelia burgdorferi bacteria transmitted by deer tick bites. Key facts for Bronx residents:

Attachment time matters. A deer tick must be attached for 36 to 48 hours to reliably transmit Lyme disease. Daily tick checks after park visits and prompt removal with fine-tipped tweezers substantially reduce transmission risk.

Nymphs are the primary transmission concern. Adult deer ticks are visible and more easily detected. Nymphs — the poppy-seed-sized juvenile stage — are responsible for most human Lyme cases because they are nearly impossible to see and are active during peak outdoor recreation months (May through July).

The Bronx is co-endemic for multiple tick-borne diseases. Deer ticks in New York also carry Anaplasmosis and Babesiosis. Dog ticks, also present in Bronx parks, can transmit Rocky Mountain Spotted Fever.

Early treatment is highly effective. If you develop a bull's-eye rash, flu-like symptoms, or joint pain in the weeks following park visits, see a physician immediately. Early-stage Lyme disease treated promptly with antibiotics resolves in the vast majority of cases.

Protecting Your Yard Near Bronx Parks

Residents who live adjacent to or near Pelham Bay Park or Van Cortlandt Park — particularly in Pelham Bay, Country Club, Woodlawn, Norwood, and Riverdale neighborhoods — face elevated tick pressure in their own yards from deer and wildlife that move between park and residential areas.

Professional tick control for residential yards near Bronx parks focuses on:

Barrier treatments. EPA-registered tick control products applied along the perimeter of your yard — particularly where your property borders woodland, naturalized areas, or neighboring overgrown vegetation — create a chemical barrier that dramatically reduces the number of ticks entering your maintained yard space.

Three-season protection programs. Effective tick management in Bronx yards near parks requires treatment in early spring (targeting emerging nymphs), mid-summer (targeting adult ticks and second-generation nymphs), and early fall (targeting adult ticks seeking reproductive hosts).

Tick tubes and rodent host treatment. White-footed mice are the primary reservoir host for Lyme bacteria. Tick tubes — treated cotton placed in rodent-accessible areas of your yard — kill ticks on mice before they can transmit bacteria to other hosts, including humans and pets.

Habitat modification. Keeping grass cut short, removing leaf litter from yard edges, and creating a wood chip or gravel barrier between lawn and naturalized areas reduces the moisture-retaining microhabitat that ticks require to survive.

Protect Your Family from Ticks — Call (917) 440-7459

If you live near Pelham Bay Park, Van Cortlandt Park, or any of the Bronx's green spaces and want professional tick control for your property, call Bronx County Pest Control at (917) 440-7459. We provide yard barrier treatments, three-season tick management programs, and free property assessments for residential properties throughout the Bronx.

Don't assume urban parks are tick-free. Call us today.