Maryland · South

Tick risk in Baltimore County, Maryland

Baltimore County covers 32 towns. Its CDC Lyme rate of 41 cases per 100,000 people a year ranks in the top 15% of U.S. counties for reported Lyme disease. CDC surveillance lists Deer tick, American dog tick, and Lone star 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 Baltimore County

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

At the summer peak, tick risk across Baltimore County runs from Mays Chapel (moderate) at the high end to Dundalk (moderate) at the low end. The difference is habitat: forest cover across the county ranges from 27% to 83%, and more forest and woodland edge means more places ticks can quest for a host.

Mays ChapelModerate risk
HamptonModerate risk
LuthervilleModerate risk
CarneyModerate risk
CatonsvilleModerate risk

Tick species in Baltimore County

CDC county surveillance (established or reported)

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

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

Diseases found in local ticks

No CDC tick-testing records for Baltimore County. That is a surveillance gap, not a sign these diseases are absent. Lyme and other tickborne illnesses occur across the region.

Tick control in Baltimore County, MD

Professional tick control across Baltimore 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 Baltimore County's more wooded towns.

How much does tick control cost in Baltimore County?

Most Baltimore 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 Baltimore County. No cost, no obligation.

Common questions about ticks in Baltimore County

Which towns in Baltimore County have the highest tick risk?

At the summer peak, Mays Chapel carries the highest modeled tick risk in Baltimore County, followed by Hampton, Lutherville, Carney, Catonsville. Risk tracks how wooded a town is: forest cover across Baltimore County ranges from 27% to 83%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Dundalk sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in Baltimore County?

CDC surveillance records 3 established tick species in Baltimore County: Deer tick, American dog tick, Lone star 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 Baltimore County?

Baltimore County reports about 41 Lyme cases per 100,000 people a year (U.S. CDC), in the top 15% of U.S. counties for reported Lyme disease (the 14th-highest of Maryland's 24 counties). Lyme is the dominant blacklegged-tick disease, so TickZone uses this county rate as the disease baseline behind every town's score.

All towns in Baltimore County

Tick risk is local. Pick the town nearest you.