Tick risk in Washington County, Tennessee
Washington County covers 2 towns and carries the 1st-highest tick-borne-disease baseline of Tennessee's 95 counties, with a Lyme rate of 4 cases per 100,000 people a year (148th of 1378 counties in the South). 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 Washington County
Peak-season modeled risk. Tick risk is local, even within one county.
At the summer peak, tick risk across Washington County runs from Jonesborough (low) at the high end to Johnson City (low) at the low end. The difference is habitat: forest cover across the county ranges from 39% to 43%, and more forest and woodland edge means more places ticks can quest for a host.
- JonesboroughLow risk
- Johnson CityLow risk
Tick species in Washington County
CDC county surveillance (established or reported)
- Deer tickEstablished
- American dog tickEstablished
- Lone star tickNot established
- Gulf Coast tickReported
Established in this county for the deer tick, the main Lyme carrier. “Not established” means no CDC surveillance record for Washington 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 Washington 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 Washington County, TN
Professional tick control across Washington 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 Washington County's more wooded towns.
How much does tick control cost in Washington County?
Most Washington 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 Washington County. No cost, no obligation.
Common questions about ticks in Washington County
Which towns in Washington County have the highest tick risk?
At the summer peak, Jonesborough carries the highest modeled tick risk in Washington County, followed by Johnson City. Risk tracks how wooded a town is: forest cover across Washington County ranges from 39% to 43%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Johnson City sits at the low end. Every town has its own daily score, so check the one nearest you.
What ticks live in Washington County?
CDC surveillance records 2 established tick species in Washington County: Deer tick, American dog tick. The blacklegged (deer) tick is the main carrier of Lyme disease. "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 Washington County?
Washington County reports about 4 Lyme cases per 100,000 people a year (U.S. CDC), the 148th-highest of 1378 counties in the South and the 1st-highest of Tennessee's 95 counties. Lyme is a smaller factor here than in the Northeast, but TickZone still uses this county rate as part of the disease baseline behind every town's score, alongside local lone-star tick pressure.
All towns in Washington County
Tick risk is local. Pick the town nearest you.