Pennsylvania · Northeast

Tick risk in Adams County, Pennsylvania

Adams County covers 34 towns. Its CDC Lyme rate of 135 cases per 100,000 people a year ranks in the top 8% of U.S. counties for reported Lyme disease. CDC surveillance lists Deer tick and American dog tick as established here. Pick your town below for today's score, a 7-day outlook, and what's driving it.

Highest and lowest tick risk in Adams County

Peak-season modeled risk. Tick risk is local, even within one county.

At the summer peak, tick risk across Adams County runs from Carroll Valley Borough (high) at the high end to Fairfield Borough (moderate) at the low end. The difference is habitat: forest cover across the county ranges from 11% to 80%, and more forest and woodland edge means more places ticks can quest for a host.

Carroll Valley BoroughHigh risk
Hamiltonban TownshipModerate risk
Franklin TownshipModerate risk
Menallen TownshipModerate risk
Liberty TownshipModerate risk

Tick species in Adams County

CDC county surveillance (established or reported)

Deer tickEstablished
American dog tickEstablished
Lone star tickReported
Gulf Coast tickNot established

Established in this county for the deer tick, the main Lyme carrier. “Not established” means no CDC surveillance record for Adams County, not that a town is tick free. Source: CDC tick surveillance (ArboNET Tick Module), 2025.

Diseases found in local ticks

Lyme diseaseBabesiosisBorrelia miyamotoi (relapsing fever)Powassan virus

Pathogens detected in ticks tested from Adams County (CDC tick-testing surveillance, 2025). This lists what has been found, not how common it is.

Tick control in Adams County, PA

Professional tick control across Adams County usually means a barrier treatment along the lawn edge, leaf litter, stone walls, and shady borders where ticks wait for a host, applied two to four times a season by a licensed pest control company. It is the single most effective way to cut tick numbers in the part of the yard your family actually uses, and it matters most in Adams County's more wooded towns.

How much does tick control cost in Adams County?

Most Adams County homeowners pay about $100 to $200 per visit for professional tick spraying, or roughly $350 to $600 for a full season of barrier treatments, depending on lot size and how wooded the property is. Quotes are free, so it costs nothing to get a real number for your yard.

Get a free tick control quote

From a vetted local tick exterminator serving Adams County. No cost, no obligation.

Common questions about ticks in Adams County

Which towns in Adams County have the highest tick risk?

At the summer peak, Carroll Valley Borough carries the highest modeled tick risk in Adams County, followed by Hamiltonban Township, Franklin Township, Menallen Township, Liberty Township. Risk tracks how wooded a town is: forest cover across Adams County ranges from 11% to 80%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Fairfield Borough sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in Adams County?

CDC surveillance records 2 established tick species in Adams County: Deer tick, American dog tick. The blacklegged (deer) tick is the main carrier of Lyme disease in the Northeast. "Not established" for a species means there is no CDC surveillance record for the county, not that the tick is absent.

Is Lyme disease common in Adams County?

Adams County reports about 135 Lyme cases per 100,000 people a year (U.S. CDC), in the top 8% of U.S. counties for reported Lyme disease (the 34th-highest of Pennsylvania's 67 counties). Lyme is the dominant blacklegged-tick disease, so TickZone uses this county rate as the disease baseline behind every town's score.