How Much Does Earthquake Insurance Cost in California?
California earthquake insurance through the California Earthquake Authority (CEA) averages around $800 per year for a typical policy, with most homeowners paying $500 to $1,000 per $100,000 of coverage. The premium is the small part of the math — deductibles of 10 to 15 percent of the dwelling coverage are where the real cost lives.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by contractor and scope
What earthquake insurance actually costs
Standard California homeowners policies exclude earthquake damage. Coverage comes through the California Earthquake Authority (CEA) — a publicly managed, privately funded entity — sold by participating insurers alongside your homeowners policy. You cannot buy from the CEA directly; it rides with your homeowners carrier.
The headline numbers for 2026: CEA premiums average roughly $800 per year, per realtor.com market data, while per-unit pricing runs $500 to $1,000 per $100,000 of dwelling coverage, per 2025 industry data. The average reflects coverage amounts people actually buy; the per-unit band lets you scale to your home — a $300,000 dwelling lands around $1,500–$3,000 per year. Your quote moves with construction type, home age, foundation, and fault-zone proximity, not just coverage amount.
Deductibles: the 10–15% reality
Earthquake deductibles work nothing like your homeowners deductible. They are percentage-based: typically 10 to 15 percent of the dwelling coverage amount, with a 5 to 25 percent range available depending on the policy. On a $600,000 dwelling at a 10% deductible, you pay the first $60,000 of damage yourself. At 15%, it is $90,000. This is not fine print — it is the defining feature of the product.
Think of CEA coverage as catastrophic insurance, not a maintenance plan: the deductible screens out everything but major structural damage. Lower deductibles (down to 5%) cost more premium; higher ones (up to 25%) cut it. There is no right answer — only the trade between annual cost and the loss you could actually absorb.
What CEA policies cover — and what they don't
A CEA homeowners policy covers the dwelling (repair or rebuild after quake damage), personal contents (a separate coverage limit you choose — contents are not automatically included), and additional living expenses while your home is uninhabitable (loss of use). Renters and condo owners can buy CEA contents-and-loss-of-use policies without dwelling coverage — worth knowing in a state where most residents do not own a house.
Exclusions matter as much as coverage: vehicles, pools, landscaping, exterior masonry veneer, and flood are not covered. Land itself is not covered either. Pre-existing damage is excluded, like all insurance. Read the declarations page, not the brochure — the limits and deductible percentage printed there are the actual product.
Retrofit discounts: up to 25% off premiums
The CEA offers premium discounts of up to 25% for homes with verified seismic retrofits — foundation bolting and cripple-wall bracing on older wood-frame houses. The math is straightforward: a verified retrofit both reduces expected damage and cuts your annual premium, which is the rare home improvement that pays you twice.
The catch is verification: permitted work by a licensed contractor, with records the insurer can confirm. Unpermitted or undocumented retrofits do not qualify. If your home was retrofitted before you bought it, get the permit records from the seller — they are worth real money at every renewal.
The Brace + Bolt grant and how to shop
The Earthquake Brace + Bolt (EBB) program offers grants of up to $3,000 to qualifying homeowners for code-compliant foundation bolting and cripple-wall bracing. Eligibility targets the homes that need it most: older wood-frame houses with a crawl space, typically owner-occupied, in participating zip codes. Registration windows open periodically and funding is limited — check the program's current status before planning around it.
Shop it with your homeowners renewal, through the carrier that holds your homeowners policy — bundling is how CEA is sold. Ask for quotes at two or three deductible percentages to see the premium trade directly. Revisit annually: construction costs and home values move, and a retrofit since last year may change the discount math.
California earthquake insurance pricing (2026)
| Item | Typical range |
|---|---|
| Average CEA premium | ~$800 / yr |
| Per-unit premium | $500 – $1,000 per $100k coverage |
| Standard deductible | 10 – 15% of dwelling coverage |
| Deductible range available | 5 – 25% |
| Verified retrofit discount | Up to 25% off premium |
| Earthquake Brace + Bolt grant | Up to $3,000 |
DIY vs. hiring a pro
The DIY alternative is self-insuring: holding enough liquid savings to rebuild. For most homeowners that is not realistic — major quake repairs run into six figures. The honest middle path: buy the coverage, choose the highest deductible you could actually pay from savings, and bank the premium savings into the emergency fund that backs it. Never carry a deductible you could not pay — that is a policy that fails exactly when you need it.
What drives the price up or down
- Coverage amount — the dwelling limit scales the premium
- Deductible percentage — 5% costs far more premium than 15%
- Construction type and age — older wood-frame costs more to insure
- Foundation type — raised/crawl-space vs. slab changes the quote
- Fault-zone proximity — zip code is a real pricing factor
- Retrofit status — verified bolting/bracing earns up to 25% off
How to keep the cost down
- Quote at 2–3 deductible percentages to see the real trade
- Get the CEA quote alongside your homeowners renewal
- Document any retrofit — permits and contractor records earn the discount
- Check Earthquake Brace + Bolt eligibility before paying for a retrofit
- Review coverage yearly — construction costs and home values move
Frequently asked questions
How much is earthquake insurance per month in California?
About $800 per year on average — roughly $65–$70 per month — at $500–$1,000 per $100,000 of dwelling coverage. Quotes move with coverage amount, deductible, construction type, and fault-zone proximity.
Why is the earthquake deductible so high?
Earthquake deductibles are percentage-based (typically 10–15% of dwelling coverage) by design — the product is catastrophic coverage, not a maintenance plan. The high deductible is what makes the premium affordable; it screens out all but major structural losses.
Does my homeowners policy cover earthquakes in California?
No. Standard California homeowners policies exclude earthquake damage. It takes a separate CEA policy, sold by participating insurers alongside your homeowners policy.
Can a seismic retrofit lower my earthquake insurance premium?
Yes — up to 25% off for verified seismic retrofits (foundation bolting, cripple-wall bracing). The work must be permitted and documented; unpermitted retrofits do not qualify.
What is the Earthquake Brace + Bolt grant?
A California program offering up to $3,000 toward code-compliant foundation bolting and cripple-wall bracing for qualifying older wood-frame homes with crawl spaces. Registration opens periodically and funding is limited.