Tick risk in Jefferson County, Wisconsin
Jefferson County covers 8 towns and carries the 64th-highest tick-borne-disease baseline of Wisconsin's 70 counties, with a Lyme rate of 46 cases per 100,000 people a year (0th of 0 counties in the Midwest). 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 Jefferson County
Peak-season modeled risk. Tick risk is local, even within one county.
At the summer peak, tick risk across Jefferson County runs from Fort Atkinson (moderate) at the high end to Johnson Creek (low) at the low end. The difference is habitat: forest cover across the county ranges from 19% to 39%, and more forest and woodland edge means more places ticks can quest for a host.
- Fort AtkinsonModerate risk
- SullivanModerate risk
- WaterlooLow risk
- PalmyraLow risk
- Lake MillsLow risk
Tick species in Jefferson County
CDC county surveillance (established or reported)
- Deer tickEstablished
- American dog tickEstablished
- Lone star tickNot established
- Gulf Coast tickNot established
Established in this county for the deer tick, the main Lyme carrier. “Not established” means no CDC surveillance record for Jefferson 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 Jefferson 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 Jefferson County, WI
Professional tick control across Jefferson 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 Jefferson County's more wooded towns.
How much does tick control cost in Jefferson County?
Most Jefferson 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 Jefferson County. No cost, no obligation.
Common questions about ticks in Jefferson County
Which towns in Jefferson County have the highest tick risk?
At the summer peak, Fort Atkinson carries the highest modeled tick risk in Jefferson County, followed by Sullivan, Waterloo, Palmyra, Lake Mills. Risk tracks how wooded a town is: forest cover across Jefferson County ranges from 19% to 39%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Johnson Creek sits at the low end. Every town has its own daily score, so check the one nearest you.
What ticks live in Jefferson County?
CDC surveillance records 2 established tick species in Jefferson 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 Jefferson County?
Jefferson County reports about 46 Lyme cases per 100,000 people a year (U.S. CDC), the 0th-highest of 0 counties in the Midwest and the 64th-highest of Wisconsin's 70 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 Jefferson County
Tick risk is local. Pick the town nearest you.