California · West

Tick risk in Orange County, California

Orange County covers 42 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 Orange County

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

At the summer peak, tick risk across Orange County runs from Trabuco Canyon (moderate) at the high end to Los Alamitos (low) at the low end. The difference is habitat: forest cover across the county ranges from 2% to 53%, and more forest and woodland edge means more places ticks can quest for a host.

Trabuco CanyonModerate risk
Rancho Mission ViejoModerate risk
Coto de CazaModerate risk
Las FloresModerate risk
Laguna BeachLow risk

Tick species in Orange 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 Orange 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 Orange 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 Orange County, CA

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

How much does tick control cost in Orange County?

Most Orange 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 Orange County. No cost, no obligation.

Common questions about ticks in Orange County

Which towns in Orange County have the highest tick risk?

At the summer peak, Trabuco Canyon carries the highest modeled tick risk in Orange County, followed by Rancho Mission Viejo, Coto de Caza, Las Flores, Laguna Beach. Risk tracks how wooded a town is: forest cover across Orange County ranges from 2% to 53%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Los Alamitos sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in Orange County?

CDC county surveillance does not yet list an established tick species for Orange 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 Orange County?

CDC reports too few cases in Orange 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.