TickZone

Tick risk in Peoria County, Illinois

Peoria County covers 15 towns and carries the 4th-highest tick-borne-disease baseline of Illinois's 102 counties, with a Lyme rate of 8 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 Peoria County

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

At the summer peak, tick risk across Peoria County runs from Norwood (moderate) at the high end to Brimfield (low) at the low end. The difference is habitat: forest cover across the county ranges from 15% to 80%, and more forest and woodland edge means more places ticks can quest for a host.

Tick species in Peoria 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 Peoria 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 Peoria 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 Peoria County, IL

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

How much does tick control cost in Peoria County?

Most Peoria 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 Peoria County. No cost, no obligation.

Common questions about ticks in Peoria County

Which towns in Peoria County have the highest tick risk?

At the summer peak, Norwood carries the highest modeled tick risk in Peoria County, followed by Bellevue, Peoria Heights, West Peoria, Bartonville. Risk tracks how wooded a town is: forest cover across Peoria County ranges from 15% to 80%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Brimfield sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in Peoria County?

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

Peoria County reports about 8 Lyme cases per 100,000 people a year (U.S. CDC), the 0th-highest of 0 counties in the Midwest and the 4th-highest of Illinois's 102 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 Peoria County

Tick risk is local. Pick the town nearest you.