Bay Area Termite Infestations by ZIP Code: What the Data Shows

Termites by the Numbers—ZIP Code Insights

Termites aren’t spread evenly across the Bay Area. Some ZIP codes show far more activity than others. At Good Sense Termite, we’ve reviewed several years of service records to figure out where termites are a growing problem, what’s causing it, and how homeowners can act early.

In this post, you’ll find:

• The ZIP codes with the most termite problems

• Why those areas are seeing more infestations

• Steps you can take to protect your home

• How real-time trends and local search help with early prevention

Where Termites Hit Hardest (2022–2025)

We ranked termite activity by looking at how often calls came in, what types of termites were found, and how severe the damage was.

Top 10 Termite Hotspot ZIP Codes in 2025

Rank	ZIP Code	City/Area	Termite Type	Key Risk Factor
1	94015	Daly City	Subterranean	Fog, poor crawl drainage
2	95125	Willow Glen (SJ)	Drywood + Subterranean	Older homes, lots of irrigation
3	94501	Alameda	Subterranean	Close to water, high moisture
4	94703	Central Berkeley	Drywood	Aging attics, redwood materials
5	94596	Walnut Creek	Drywood	Heat, wood siding
6	94061	Redwood City	Subterranean	Shaded soil, tree roots
7	94611	Oakland Hills	Subterranean	Wood retaining walls
8	95050	Santa Clara	Mixed	Flipped homes, retrofits
9	94070	San Carlos	Subterranean	Vapor barrier issues
10	94577	San Leandro	Subterranean	Landscaping near foundations

What These ZIP Codes Have in Common

• Older Homes Are More Likely to Have Termites

Places like Berkeley, Alameda, and parts of San Jose have lots of homes built before modern building materials and termite shields were used.

• Damp Spots Mean More Termite Activity

ZIP codes near water or fog zones, like 94015 and 94501, keep the soil moist

year-round. That’s perfect for termites, especially the underground kind.

• Wood on the Ground = Easy Access

Homes with mulch, redwood fences, or tree roots near the foundation (like in 94061 or 94611) are at higher risk. These conditions make it easier for termites to get inside.

ZIP Code to Watch: 95125 (Willow Glen)

In this San Jose neighborhood, termite treatments are up 45% in the past 18 months. Here’s why:

• Large remodels and yard projects disturb the soil

• Stucco walls trap moisture

• Older homes lack vapor barriers

What to Do If You Live in a Hot Zone

• Get Inspected Once a Year If your ZIP is on the list, don’t wait. Book a termite check every 12 months—whether or not you see signs.

• Ask for Termite Reports When Buying If you’re buying a home, ask about past termite work. In hot ZIPs, this step is key.

• Use Barrier Systems in Problem Areas Live in 94015, 94070, or 94577? Install bait stations or soil treatments to block termite entry.

FAQ

Q: Are certain termite types more common in some ZIP codes? 

A: Yes. Drywood termites are more active in hotter ZIPs like 94596 and 95125. Subterranean termites prefer cooler, wetter places like 94015 and 94501.

Q: Where does this ZIP code data come from? 

A: We gathered it from our own inspections and service calls from 2022 to 2025, with ZIP codes tagged for pattern tracking.

Q: I don’t live in a top 10 ZIP—should I still worry?

A: Yes. Termites can spread across neighborhoods. If you're within a few miles of a hotspot, take the same steps for safety.

Final Tip: Know Your ZIP, Stay Ahead

Termites in the Bay Area don’t follow a set map. A neighbor may have no signs, while your home is already at risk. By knowing your ZIP code’s history and what causes problems in your area, you can take the right steps to protect your home early.

If you're in one of these high-risk areas, reach out to Good Sense Termite today to book an inspection built for your ZIP.