Why Monroe County Is Ground Zero for Lyme Disease in Pennsylvania

Pennsylvania's Lyme Disease Problem Starts in Monroe County

Pennsylvania has ranked among the top three states in the country for reported Lyme disease cases for more than a decade. In 2023 alone, Pennsylvania reported over 9,000 confirmed Lyme disease cases to the CDC — more than any other state. And within Pennsylvania, Monroe County consistently stands out as one of the highest-burden counties in the state.

This isn't a coincidence. The Pennsylvania Tick Research Lab — the state's primary facility for tick surveillance, testing, and Lyme disease research — is physically located at East Stroudsburg University in Monroe County. Researchers chose this location precisely because Monroe County sits at the epicenter of Pennsylvania's tick problem.

The Biology Behind the Bite

The primary culprit is the black-legged tick, *Ixodes scapularis*, also known as the deer tick. Understanding its biology is essential for protecting yourself and your family.

The Two-Year Lifecycle

Black-legged ticks live for approximately two years and go through four life stages: egg, larva, nymph, and adult. Each stage after egg requires a blood meal to advance.

• Larvae (late summer): Tiny — barely visible — they feed primarily on small mammals like white-footed mice, which are the primary reservoir for Lyme disease bacteria

• Nymphs (spring and early summer): About the size of a poppy seed; responsible for the majority of human Lyme disease infections because they're nearly impossible to detect

• Adults (fall and spring): Sesame seed-sized; females need a blood meal before laying eggs

Where They Hide

Black-legged ticks don't climb trees or jump. They wait in a behavior called "questing" — holding onto grass or leaf tips with their back legs while reaching forward with their front legs to grab a passing host. They concentrate in:

• Leaf litter — especially accumulated fall leaves against foundations and in wooded areas

• Tall grass and overgrown vegetation at the edges of lawns

• Wooded trail edges — the boundary where lawn meets forest is the highest-risk zone

• Stone walls — stone walls are perfect tick habitat, providing moisture, shelter, and proximity to rodent populations

• Shaded, humid areas — ticks desiccate quickly in direct sunlight and dry conditions

Transmission Requires Time

This is critical: the Lyme disease bacteria (*Borrelia burgdorferi*) must travel from the tick's midgut to its salivary glands before transmission. This means an attached tick generally must feed for 36–48 hours before transmission is likely. This is why daily tick checks are so effective — finding and removing ticks within 24 hours dramatically reduces infection risk.

Beyond Lyme: Other Tick-Borne Diseases in Monroe County

Lyme disease gets the headlines, but it's not the only concern. Multiple tick-borne pathogens are circulating in Monroe County ticks:

Anaplasmosis (*Anaplasma phagocytophilum*): Transmitted by the same black-legged tick, causes flu-like symptoms within 1–2 weeks. Can be severe in older adults and immunocompromised individuals.

Babesiosis (*Babesia microti*): A malaria-like illness that infects red blood cells. Particularly dangerous for people who have had their spleen removed. Cases have been increasing in Monroe County.

Powassan Virus: A rare but increasingly detected virus transmitted by black-legged ticks. Unlike Lyme disease, Powassan can be transmitted in as little as 15 minutes of tick attachment. There is no specific treatment. Several cases have been reported in Pennsylvania in recent years, and Monroe County is within the known range.

Why Monroe County Is Particularly High-Risk

Deer Population Density

Adult female black-legged ticks use deer almost exclusively for their final blood meal before egg-laying. Monroe County's combination of forest, suburban development, and hunting restrictions in many communities has allowed the white-tailed deer population to reach extremely high densities. More deer means more egg-laying ticks. More egg-laying ticks means exponential population growth.

Habitat

The Pocono Mountains' mix of forest, leaf litter, moisture-retaining terrain, and abundant white-footed mouse populations creates ideal conditions for tick survival year-round. The region's humidity is particularly beneficial for ticks, which need environmental moisture to avoid desiccation.

High-Risk Communities

Certain Pocono communities see disproportionately high tick exposure:

• Hemlock Farms (Pike County): Forest canopy, proximity to deer corridors, extensive trail systems

• Saw Creek Estates: Wooded lots with high deer traffic

• Pocono Farms Country Club: Properties adjacent to forested areas with known deer population concentration

Residents of these communities who spend time outdoors — especially those with children who play in yards adjacent to wooded edges — face the highest cumulative exposure risk.

Protecting Your Family

Daily Tick Checks

After any outdoor activity, perform a full-body tick check. Pay special attention to: hairline and scalp, behind ears, armpits, groin, and behind knees. Check children and pets before they come inside.

Protective Clothing

- Treat clothing with permethrin (0.5% concentration) — effective through multiple washes and kills ticks on contact

- Light-colored clothing makes ticks easier to spot

- Tuck pants into socks when in wooded or tall-grass areas

Repellents

- DEET (20–30%) on exposed skin is highly effective

- Picaridin is an effective DEET alternative, less odorous

- Oil of lemon eucalyptus (OLE) for those preferring plant-based options

Yard Modification

- Clear leaf litter from against your foundation each fall

- Maintain a 3-foot wood chip or gravel barrier between your lawn and any wooded edges

- Keep grass mowed short

- Move woodpiles away from your home — at least 20 feet from the structure

- Trim shrubs and ground cover back from the house

When Professional Tick Treatment Is Necessary

Yard tick treatments — typically barrier sprays applied to vegetation edges and target areas — can significantly reduce tick populations on your property. Professional treatment is particularly important for:

• Properties with wooded lot edges: The lawn-forest interface is where 80%+ of tick encounters occur

• Homes with children or pets who spend time in the yard

• Properties near deer trails or feeding areas

• Any family with a member who is immunocompromised, elderly, or has previously had Lyme disease

Professional treatments target the microhabitats where ticks concentrate — leaf litter zones, vegetation edges, and shaded areas — using EPA-registered acaricides. Timing is important: treatments in late April/May (targeting nymphs) and September/October (targeting adults) provide the best year-round protection.

Don't wait until someone in your household finds a tick embedded. In Monroe County, the question isn't whether ticks are on your property — it's how many.

Call us today to schedule a tick assessment and treatment for your Pocono property. We serve Monroe, Pike, Wayne, and Carbon counties.