Tick risk in DeKalb County, Illinois

DeKalb County covers 12 towns. CDC reports too few cases here to publish a county Lyme rate, but each town still has a daily score built from local weather, habitat, and season. Pick your town below for today's reading.

Highest and lowest tick risk in DeKalb County

Peak-season modeled risk. Tick risk is local, even within one county.

At the summer peak, tick risk across DeKalb County runs from Hinckley (moderate) at the high end to Cortland (low) at the low end. The difference is habitat: forest cover across the county ranges from 7% to 40%, and more forest and woodland edge means more places ticks can quest for a host.

Tick species in DeKalb County

CDC county surveillance (established or reported)

  • Deer tickEstablished
  • American dog tickEstablished
  • 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 DeKalb 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 DeKalb 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 DeKalb County, IL

Professional tick control across DeKalb 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 DeKalb County's more wooded towns.

How much does tick control cost in DeKalb County?

Most DeKalb 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.

Get a free tick control quote

From a vetted local tick exterminator serving DeKalb County. No cost, no obligation.

Common questions about ticks in DeKalb County

Which towns in DeKalb County have the highest tick risk?

At the summer peak, Hinckley carries the highest modeled tick risk in DeKalb County, followed by Kingston, Genoa, Sandwich, Malta. Risk tracks how wooded a town is: forest cover across DeKalb County ranges from 7% to 40%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Cortland sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in DeKalb County?

CDC surveillance records 2 established tick species in DeKalb 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 DeKalb County?

CDC reports too few cases in DeKalb County to publish a stable county Lyme rate, which is common in rural or low-population counties. That does not mean the risk is zero: Lyme and other tickborne illnesses occur across the Northeast.

All towns in DeKalb County

Tick risk is local. Pick the town nearest you.