Tick risk in St. Mary's County, Maryland
St. Mary's County covers 1 towns and carries the 11th-highest tick-borne-disease baseline of Maryland's 22 counties, with a Lyme rate of 43 cases per 100,000 people a year (87th of 1378 counties in the South). 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.
Tick species in St. Mary's County
CDC county surveillance (established or reported)
- Deer tickEstablished
- American dog tickEstablished
- Lone star tickEstablished
- Gulf Coast tickReported
Established in this county for the deer tick, the main Lyme carrier. “Not established” means no CDC surveillance record for St. Mary's 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 St. Mary's 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 St. Mary's County, MD
Professional tick control across St. Mary's 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 St. Mary's County's more wooded towns.
How much does tick control cost in St. Mary's County?
Most St. Mary's 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.
From a vetted local tick exterminator serving St. Mary's County. No cost, no obligation.
Common questions about ticks in St. Mary's County
Which towns in St. Mary's County have the highest tick risk?
Every town in St. Mary's County has its own daily tick-risk score built from local weather, habitat, and season. Pick your town below for today's reading and a 7-day outlook.
What ticks live in St. Mary's County?
CDC surveillance records 3 established tick species in St. Mary's 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 St. Mary's County?
St. Mary's County reports about 43 Lyme cases per 100,000 people a year (U.S. CDC), the 87th-highest of 1378 counties in the South and the 11th-highest of Maryland's 22 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 St. Mary's County
Tick risk is local. Pick the town nearest you.