Tick risk in Sauk County, Wisconsin
Sauk County covers 15 towns and carries the 40th-highest tick-borne-disease baseline of Wisconsin's 70 counties, with a Lyme rate of 143 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 Sauk County
Peak-season modeled risk. Tick risk is local, even within one county.
At the summer peak, tick risk across Sauk County runs from Merrimac (moderate) at the high end to Ironton (moderate) at the low end. The difference is habitat: forest cover across the county ranges from 17% to 54%, and more forest and woodland edge means more places ticks can quest for a host.
- MerrimacModerate risk
- Rock SpringsModerate risk
- Lake DeltonModerate risk
- La ValleModerate risk
- North FreedomModerate risk
Tick species in Sauk 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 Sauk 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 Sauk 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 Sauk County, WI
Professional tick control across Sauk 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 Sauk County's more wooded towns.
How much does tick control cost in Sauk County?
Most Sauk 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 Sauk County. No cost, no obligation.
Common questions about ticks in Sauk County
Which towns in Sauk County have the highest tick risk?
At the summer peak, Merrimac carries the highest modeled tick risk in Sauk County, followed by Rock Springs, Lake Delton, La Valle, North Freedom. Risk tracks how wooded a town is: forest cover across Sauk County ranges from 17% to 54%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Ironton sits at the low end. Every town has its own daily score, so check the one nearest you.
What ticks live in Sauk County?
CDC surveillance records 2 established tick species in Sauk 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 Sauk County?
Sauk County reports about 143 Lyme cases per 100,000 people a year (U.S. CDC), the 0th-highest of 0 counties in the Midwest and the 40th-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 Sauk County
Tick risk is local. Pick the town nearest you.