New York · Northeast
Tick risk in Ontario County, New York
Ontario County covers 18 towns. Its CDC Lyme rate of 166 cases per 100,000 people a year ranks in the top 6% of U.S. counties for reported Lyme disease. CDC surveillance lists Deer 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 Ontario County
Peak-season modeled risk. Tick risk is local, even within one county.
At the summer peak, tick risk across Ontario County runs from Canadice (high) at the high end to Seneca (moderate) at the low end. The difference is habitat: forest cover across the county ranges from 27% to 89%, and more forest and woodland edge means more places ticks can quest for a host.
- CanadiceHigh risk
- South BristolHigh risk
- NaplesHigh risk
- BristolHigh risk
- RichmondModerate risk
Tick species in Ontario County
CDC county surveillance (established or reported)
- Deer tickEstablished
- American dog tickNot established
- 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 Ontario County, not that a town is tick free. Source: CDC tick surveillance (ArboNET Tick Module), 2025.
Diseases found in local ticks
Pathogens detected in ticks tested from Ontario County (CDC tick-testing surveillance, 2025). This lists what has been found, not how common it is.
Tick control in Ontario County, NY
Professional tick control across Ontario 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 Ontario County's more wooded towns.
How much does tick control cost in Ontario County?
Most Ontario 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 Ontario County. No cost, no obligation.
Common questions about ticks in Ontario County
Which towns in Ontario County have the highest tick risk?
At the summer peak, Canadice carries the highest modeled tick risk in Ontario County, followed by South Bristol, Naples, Bristol, Richmond. Risk tracks how wooded a town is: forest cover across Ontario County ranges from 27% to 89%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Seneca sits at the low end. Every town has its own daily score, so check the one nearest you.
What ticks live in Ontario County?
CDC surveillance records one established tick species in Ontario County: Deer 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 Ontario County?
Ontario County reports about 166 Lyme cases per 100,000 people a year (U.S. CDC), in the top 6% of U.S. counties for reported Lyme disease (the 32nd-highest of New York's 62 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 Ontario County
Tick risk is local. Pick the town nearest you.