Oregon · West
Tick risk in Marion County, Oregon
Marion County covers 21 towns and carries the 2nd-highest tick-borne-disease baseline of Oregon's 36 counties, with a Lyme rate of 2 cases per 100,000 people a year (0th of 0 counties in the West). Pick your town below for today's score, a 7-day outlook, and what's driving it.
Highest and lowest tick risk in Marion County
Peak-season modeled risk. Tick risk is local, even within one county.
At the summer peak, tick risk across Marion County runs from Idanha (moderate) at the high end to Donald (low) at the low end. The difference is habitat: forest cover across the county ranges from 18% to 88%, and more forest and woodland edge means more places ticks can quest for a host.
- IdanhaModerate risk
- GatesModerate risk
- Scotts MillsModerate risk
- DetroitModerate risk
- AuroraModerate risk
Tick species in Marion County
CDC county surveillance (established or reported)
- Deer tickReported
- American dog tickReported
- Lone star tickNot established
- Gulf Coast tickNot established
Reported in this county for the deer tick, the main Lyme carrier. “Not established” means no CDC surveillance record for Marion 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 Marion 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 Marion County, OR
Professional tick control across Marion 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 Marion County's more wooded towns.
How much does tick control cost in Marion County?
Most Marion 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 Marion County. No cost, no obligation.
Common questions about ticks in Marion County
Which towns in Marion County have the highest tick risk?
At the summer peak, Idanha carries the highest modeled tick risk in Marion County, followed by Gates, Scotts Mills, Detroit, Aurora. Risk tracks how wooded a town is: forest cover across Marion County ranges from 18% to 88%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Donald sits at the low end. Every town has its own daily score, so check the one nearest you.
What ticks live in Marion County?
CDC county surveillance does not yet list an established tick species for Marion County, but that reflects a surveillance gap, not absence. The blacklegged (deer) tick, the main Lyme carrier, is found across the west. Take the usual precautions after time outdoors.
Is Lyme disease common in Marion County?
Marion County reports about 2 Lyme cases per 100,000 people a year (U.S. CDC), the 2nd-highest of Oregon's 36 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 Marion County
Tick risk is local. Pick the town nearest you.