California · West

Tick risk in San Joaquin County, California

San Joaquin County covers 22 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 San Joaquin County

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

At the summer peak, tick risk across San Joaquin County runs from Linden (moderate) at the high end to Lathrop (low) at the low end. The difference is habitat: forest cover across the county ranges from 3% to 72%, and more forest and woodland edge means more places ticks can quest for a host.

Tick species in San Joaquin 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 San Joaquin 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 San Joaquin 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 San Joaquin County, CA

Professional tick control across San Joaquin 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 San Joaquin County's more wooded towns.

How much does tick control cost in San Joaquin County?

Most San Joaquin 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 San Joaquin County. No cost, no obligation.

Common questions about ticks in San Joaquin County

Which towns in San Joaquin County have the highest tick risk?

At the summer peak, Linden carries the highest modeled tick risk in San Joaquin County, followed by Morada, Woodbridge, Lincoln Village, Lockeford. Risk tracks how wooded a town is: forest cover across San Joaquin County ranges from 3% to 72%, and the more forest and woodland edge a town has, the more habitat ticks have to quest from. Lathrop sits at the low end. Every town has its own daily score, so check the one nearest you.

What ticks live in San Joaquin County?

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

CDC reports too few cases in San Joaquin 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 San Joaquin County

Tick risk is local. Pick the town nearest you.

Tick risk where you live

Tick activity is local and changes daily. Pick your state for tick season dates, the species that live there, and a daily tick-risk score for every town.